{"item": {"cve_id": "CVE-2016-10033", "ghsa_id": "", "osv_id": "", "title": "CVE-2016-10033", "description": "The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code via a \\\" (backslash double quote) in a crafted Sender property.", "published_at": "2016-12-30T19:59:00.137", "modified_at": "2026-06-17T00:38:55.477", "vendor": "Phpmailer Project", "product": "Phpmailer", "affected_versions": ["n/a"], "fixed_versions": [], "cvss_score": 9.8, "cvss_version": "3.1", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "severity": "CRITICAL", "epss_score": 0.99714, "epss_percentile": 0.99951, "epss_date": "2026-10-06", "is_kev": true, "kev_date": "2025-07-07", "kev_due_date": "2025-07-28", "kev_action": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.", "cwe_ids": ["CWE-88"], "attack_vector": "NETWORK", "attack_complexity": "LOW", "privileges_required": "NONE", "user_interaction": "NONE", "references": ["http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.html", "http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html", "http://seclists.org/fulldisclosure/2016/Dec/78", "http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection", "http://www.securityfocus.com/archive/1/539963/100/0/threaded", "http://www.securityfocus.com/bid/95108", "http://www.securitytracker.com/id/1037533", "https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.html", "https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18", "https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilities", "https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html", 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"x_refsource_EXPLOIT-DB", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.exploit-db.com/exploits/42024/", "tags": ["Exploit", "Third Party Advisory", "VDB Entry", "exploit", "x_refsource_EXPLOIT-DB", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.exploit-db.com/exploits/42221/", "tags": ["Exploit", "Third Party Advisory", "VDB Entry", "exploit", "x_refsource_EXPLOIT-DB", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-10033", "tags": ["US Government Resource", "government-resource"], "source": "NVD", "name": ""}], "cvss_v4_score": null, "cvss_v4_vector": "", "cvss_v4_severity": "", "nvd_status": "Analyzed", "cna": "mitre", "date_reserved": "2016-12-22T00:00:00.000Z", "ssvc": {"options": {"Exploitation": "active", "Automatable": "yes", "Technical Impact": "total"}, "version": "2.0.3", "timestamp": "2025-07-17T03:55:44.949090Z", "role": "CISA Coordinator"}, "affected_products": [{"vendor": "Phpmailer Project", "product": "Phpmailer", "ranges": ["avant 5.2.18"], "first_unaffected": ["5.2.18"], "source": "NVD"}, {"vendor": "Wordpress", "product": "Wordpress", "ranges": ["jusqu'à 4.7 (incluse)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Joomla", "product": "Joomla!", "ranges": ["de 1.5.0 à 3.6.5 (incluse)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "n/a", "product": "n/a", "ranges": ["n/a"], "first_unaffected": [], "source": "CVE.org"}], "kev_name": "PHPMailer Command Injection Vulnerability", "kev_short_description": "PHPMailer contains a command injection vulnerability because it fails to sanitize user-supplied input. Specifically, this issue affects the 'mail()' function of 'class.phpmailer.php' script. An attacker can exploit this issue to execute arbitrary code within the context of the application. Failed exploit attempts will result in a denial-of-service condition.", "kev_ransomware": "Unknown", "kev_notes": "This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18 ; https://github.com/advisories/GHSA-5f37-gxvh-23v6 ; https://nvd.nist.gov/vuln/detail/CVE-2016-10033", "kev_cwes": ["CWE-77", "CWE-88"], "wordfence_id": "", "mentions_sources": [], "version_match": "unknown", "risk_score": 81, "risk_class": "Critique", "impact": {"confidentialite": "élevé", "integrite": "élevé", "disponibilite": "élevé", "summary": "Un attaquant exploitant cette vulnérabilité pourrait, selon les conditions décrites par les sources, exploitable à distance (réseau), sans authentification préalable, affecter la confidentialité des données, l'intégrité du système et la disponibilité du service.", "basis": "CVSS 3.1"}, "mechanism": "Famille « injection » : des données mal contrôlées peuvent modifier une instruction exécutée par le logiciel.", "mitigation": {"correction": {"available": true, "text": "Mettre à jour : selon les sources, ne sont plus concernées les versions à partir de Phpmailer 5.2.18."}, "mitigation": {"specific": "Aucune mesure de mitigation spécifique confirmée par les sources consultées. Consultez les références officielles pour d'éventuelles mesures détaillées.", "general": ["Maintenir le produit à jour et activer les mises à jour de sécurité.", "Restreindre l'exposition réseau du service au strict nécessaire.", "Appliquer le principe du moindre privilège.", "Surveiller les journaux et les alertes de sécurité."], "specific_links": []}, "containment": {"applicable": true, "actions": ["Action recommandée par la CISA : Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.", "Isoler ou restreindre l'accès au service concerné.", "Restreindre les flux réseau entrants/sortants liés au composant.", "Renforcer la surveillance des journaux et des accès.", "Désactiver temporairement le composant vulnérable si l'activité le permet."]}, "note": "Priorité aux consignes officielles de l'éditeur et des références. Vérifiez toujours l'avis de sécurité avant toute intervention en production.", "official_links": [{"url": "http://seclists.org/fulldisclosure/2016/Dec/78", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "", "domaine": "seclists.org"}, {"url": "https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "GitHub", "domaine": "github.com"}, {"url": "https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilities", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "GitHub", "domaine": "github.com"}]}, "plain": {"verdict": "now", "verdict_label": "Exploité par des attaquants · à traiter aujourd'hui", "verdict_css": "now", "verdict_rank": 0, "headline": "Un attaquant peut faire exécuter du code de son choix, à distance et sans compte", "headline_is_derived": true, "action": "Mettre à jour vers Phpmailer 5.2.18 ou plus récent, version publiée comme non concernée.", "action_kind": "update", "concerned": [{"version": "Phpmailer 5.2.18 ou plus récent", "state": "safe", "state_label": "Non concerné", "todo": "Rien à faire. Gardez les mises à jour automatiques activées."}, {"version": "n/a", "state": "hit", "state_label": "Concerné", "todo": "Mettre à jour vers Phpmailer 5.2.18 ou plus récent, version publiée comme non concernée."}, {"version": "Je ne connais pas ma version", "state": "unknown", "state_label": "À vérifier", "todo": "La version s'affiche généralement dans le menu « À propos » ou « Aide » du logiciel."}], "steps": [{"title": "Sauvegarder avant d'intervenir", "detail": "Une copie récente des données et de la configuration. Si votre hébergeur propose une sauvegarde en un clic, c'est le moment.", "duration": "10 min", "priority": false}, {"title": "Mettre à jour vers Phpmailer 5.2.18 ou plus récent, version publiée comme non concernée", "detail": "C'est la correction officielle. Tant qu'elle n'est pas appliquée, les autres mesures ne sont que temporaires.", "duration": "15 à 45 min", "priority": true}, {"title": "En attendant : réduire l'exposition sur Internet", "detail": "La faille est exploitable à distance. Limiter l'accès au service depuis l'extérieur (pare-feu, filtrage d'adresses, VPN) réduit fortement le risque.", "duration": "30 min", "priority": false}, {"title": "Vérifier que vous n'avez pas déjà été touché", "detail": "Cette faille est activement exploitée. Contrôler les comptes créés récemment, les connexions inhabituelles et les fichiers modifiés depuis la date de publication.", "duration": "30 min", "priority": true}, {"title": "Confirmer que tout fonctionne encore", "detail": "Après correction : page d'accueil, connexion, et les deux ou trois fonctions dont vous vous servez tous les jours.", "duration": "10 min", "priority": false}], "exploited": true, "exploited_label": "Oui, des attaques réelles sont constatées", "fixed_label": "Phpmailer 5.2.18 (non concernée selon les sources)", "affected_label": "n/a"}, "severity_display": "Critique", "cvss_is_legacy": false, "risk_score_computable": true, "identifier": "CVE-2016-10033", "severity_fr": "Critique", "epss_pct": 99.7, "source_records": [{"source": "NVD", "label": "NVD, NIST", "date_label": "Publié dans la base", "date": "2016-12-30", "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-10033"}, {"source": "CVE.org", "label": "CVE.org, programme CVE", "date_label": "Publié par l'organisme CNA", "date": "2016-12-30", "url": "https://www.cve.org/CVERecord?id=CVE-2016-10033"}, {"source": "CISA", "label": "CISA KEV", "date_label": "Ajout au catalogue", "date": "2025-07-07", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-10033"}, {"source": "FIRST EPSS", "label": "FIRST EPSS", "date_label": "Score daté du", "date": "2026-10-06", "url": "https://api.first.org/data/v1/epss?cve=CVE-2016-10033"}], "exploit_public": true, "reseau_sans_auth": true, "exposition": "À distance, sans compte et sans action d'un utilisateur", "owasp": [{"code": "A05", "nom": "Injection", "nom_officiel": "Injection", "slug": "a05-injection", "libelle": "A05:2025 Injection", "url_officielle": "https://top10.owasp.org/2025/A05_2025-Injection/"}]}, "presentation": {"en_bref": [{"question": "Est-elle attaquée ?", "ton": "alerte", "reponse": "Oui, attaques constatées", "source": "Catalogue CISA KEV"}, {"question": "Existe-t-il un correctif ?", "ton": "bon", "reponse": "Oui : 5.2.18", "source": "Versions publiées comme non concernées"}, {"question": "Comment l'attaquer ?", "ton": "alerte", "reponse": "À distance, sans compte et sans action d'un utilisateur", "source": "Vecteur CVSS publié"}, {"question": "Risque d'exploitation", "ton": "alerte", "reponse": "99,7 % sur 30 jours", "source": "Plus probable que 100 % des failles connues"}], "references": [{"cle": "correctif", "titre": "Correctifs et versions corrigées", "explication": "Les pages que les sources désignent comme correctif ou notes de version.", "items": [{"url": "http://seclists.org/fulldisclosure/2016/Dec/78", "domaine": "seclists.org", "editeur": "", "etiquettes": ["Liste de diffusion", "Correctif", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18", "domaine": "github.com", "editeur": "GitHub", "etiquettes": ["Correctif", "Avis de l'éditeur"], "nom": "", "lien": true, "casse": false}, {"url": "https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilities", "domaine": "github.com", "editeur": "GitHub", "etiquettes": ["Correctif", "Avis de l'éditeur"], "nom": "", "lien": true, "casse": false}]}, {"cle": "avis_tiers", "titre": "Avis d'autorités et d'organismes tiers", "explication": "CERT, agences gouvernementales, bases de vulnérabilités, chercheurs.", "items": [{"url": "http://www.securityfocus.com/archive/1/539963/100/0/threaded", "domaine": "www.securityfocus.com", "editeur": "", "etiquettes": ["Lien signalé cassé", "Avis d'un tiers", "Base de vulnérabilités"], "nom": "", "lien": true, "casse": true}, {"url": "http://www.securitytracker.com/id/1037533", "domaine": "www.securitytracker.com", "editeur": "", "etiquettes": ["Lien signalé cassé", "Avis d'un tiers", "Base de vulnérabilités"], "nom": "", "lien": true, "casse": true}, {"url": "https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.html", "domaine": "developer.joomla.org", "editeur": "", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.drupal.org/psa-2016-004", "domaine": "www.drupal.org", "editeur": "", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-10033", "domaine": "www.cisa.gov", "editeur": "CISA", "etiquettes": ["Ressource gouvernementale américaine", "Ressource gouvernementale"], "nom": "", "lien": true, "casse": false}]}, {"cle": "exploit", "titre": "Codes d'exploitation référencés", "explication": "Les sources signalent un code d'exploitation public. Par prudence, CyberAlert affiche le site qui l'héberge sans lien direct : l'information utile ici est son existence, qui rend la faille plus facile à attaquer.", "items": [{"url": "http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.html", "domaine": "packetstormsecurity.com", "editeur": "Packet Storm", "etiquettes": ["Code d'exploitation", "Avis d'un tiers", "Base de vulnérabilités"], "nom": "", "lien": false, "casse": false}, {"url": "http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html", "domaine": "packetstormsecurity.com", "editeur": "Packet Storm", "etiquettes": ["Code d'exploitation", "Avis d'un tiers", "Base de vulnérabilités"], "nom": "", "lien": false, "casse": false}, {"url": "http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection", "domaine": "www.rapid7.com", "editeur": "", "etiquettes": ["Code d'exploitation", "Avis d'un tiers"], "nom": "", "lien": false, "casse": false}, {"url": 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{"url": "https://www.exploit-db.com/exploits/40970/", "domaine": "www.exploit-db.com", "editeur": "Exploit-DB", "etiquettes": ["Code d'exploitation", "Correctif", "Avis d'un tiers", "Base de vulnérabilités"], "nom": "", "lien": false, "casse": false}, {"url": "https://www.exploit-db.com/exploits/40974/", "domaine": "www.exploit-db.com", "editeur": "Exploit-DB", "etiquettes": ["Code d'exploitation", "Avis d'un tiers", "Base de vulnérabilités"], "nom": "", "lien": false, "casse": false}, {"url": "https://www.exploit-db.com/exploits/40986/", "domaine": "www.exploit-db.com", "editeur": "Exploit-DB", "etiquettes": ["Code d'exploitation", "Avis d'un tiers", "Base de vulnérabilités"], "nom": "", "lien": false, "casse": false}, {"url": "https://www.exploit-db.com/exploits/41962/", "domaine": "www.exploit-db.com", "editeur": "Exploit-DB", "etiquettes": ["Code d'exploitation", "Avis d'un tiers", "Base de vulnérabilités"], "nom": "", "lien": false, "casse": false}, {"url": "https://www.exploit-db.com/exploits/41996/", "domaine": "www.exploit-db.com", "editeur": "Exploit-DB", "etiquettes": ["Code d'exploitation", "Avis d'un tiers", "Base de vulnérabilités"], "nom": "", "lien": false, "casse": false}, {"url": "https://www.exploit-db.com/exploits/42024/", "domaine": "www.exploit-db.com", "editeur": "Exploit-DB", "etiquettes": ["Code d'exploitation", "Avis d'un tiers", "Base de vulnérabilités"], "nom": "", "lien": false, "casse": false}, {"url": "https://www.exploit-db.com/exploits/42221/", "domaine": "www.exploit-db.com", "editeur": "Exploit-DB", "etiquettes": ["Code d'exploitation", "Avis d'un tiers", "Base de vulnérabilités"], "nom": "", "lien": false, "casse": false}]}], "liens_correction": [{"url": "http://seclists.org/fulldisclosure/2016/Dec/78", "domaine": "seclists.org", "editeur": "", "etiquettes": ["Liste de diffusion", "Correctif", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et 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"explication": "Conditions hors du contrôle de l'attaquant."}, {"code": "PR", "nom": "Privilèges requis", "valeur": "Aucun (pas de compte)", "brut": "N", "explication": "Droits dont l'attaquant a besoin avant d'attaquer."}, {"code": "UI", "nom": "Interaction de l'utilisateur", "valeur": "Aucune", "brut": "N", "explication": "Une victime doit-elle cliquer ou ouvrir quelque chose ?"}, {"code": "S", "nom": "Portée", "valeur": "Inchangée", "brut": "U", "explication": "L'attaque peut-elle toucher d'autres composants que celui qui est vulnérable ?"}, {"code": "C", "nom": "Confidentialité", "valeur": "Élevé", "brut": "H", "explication": "Accès à des informations protégées."}, {"code": "I", "nom": "Intégrité", "valeur": "Élevé", "brut": "H", "explication": "Modification de données ou du système."}, {"code": "A", "nom": "Disponibilité", "valeur": "Élevé", "brut": "H", "explication": "Arrêt ou ralentissement du service."}], "calculateur": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "specification": "https://www.first.org/cvss/v3.1/specification-document"}, "cvss4": null, "cwe": [{"id": "CWE-88", "nom": "", "url": "https://cwe.mitre.org/data/definitions/88.html"}], "owasp": [{"code": "A05", "nom": "Injection", "nom_officiel": "Injection", "slug": "a05-injection", "libelle": "A05:2025 Injection", "url_officielle": "https://top10.owasp.org/2025/A05_2025-Injection/"}], "ssvc": {"lignes": [{"nom": "Exploitation", "valeur": "Exploitation active constatée", "brut": "active"}, {"nom": "Automatisable", "valeur": "Oui : l'attaque peut être enchaînée sans intervention humaine", "brut": "yes"}, {"nom": "Impact technique", "valeur": "Total : contrôle complet du composant ou de ses informations", "brut": "total"}], "version": "2.0.3", "date": "2025-07-17", "role": "CISA Coordinator", "url": "https://www.cisa.gov/stakeholder-specific-vulnerability-categorization-ssvc"}, "chronologie": [{"date": "2016-12-22", "libelle": "Identifiant réservé", "qui": "Programme CVE"}, {"date": "2016-12-30", "libelle": "Publication de la vulnérabilité", "qui": "mitre"}, {"date": "2025-07-07", "libelle": "Ajout au catalogue des failles exploitées", "qui": "CISA"}, {"date": "2025-07-17", "libelle": "Décision SSVC publiée", "qui": "CISA"}, {"date": "2025-07-28", "libelle": "Échéance de correction fixée par la CISA", "qui": "CISA"}, {"date": "2026-06-17", "libelle": "Dernière mise à jour de la fiche source", "qui": "Source"}, {"date": "2026-10-06", "libelle": "Calcul du score EPSS affiché", "qui": "FIRST"}], "liens_officiels": [{"nom": "NVD (NIST)", "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-10033", "description": "Fiche de référence : CVSS, CPE, références étiquetées."}, {"nom": "CVE.org", "url": "https://www.cve.org/CVERecord?id=CVE-2016-10033", "description": "Enregistrement officiel publié par l'organisme qui a attribué l'identifiant."}, {"nom": "CISA KEV", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-10033", "description": "Entrée du catalogue des failles activement exploitées."}, {"nom": "FIRST EPSS", "url": "https://api.first.org/data/v1/epss?cve=CVE-2016-10033", "description": "Score de probabilité d'exploitation du jour."}, {"nom": "OSV.dev", "url": "https://osv.dev/vulnerability/CVE-2016-10033", "description": "Paquets open source concernés et versions corrigées."}, {"nom": "GitHub Advisory Database", "url": "https://github.com/advisories?query=CVE-2016-10033", "description": "Avis de sécurité des dépendances logicielles."}], "produits": [{"vendor": "Phpmailer Project", "product": "Phpmailer", "ranges": ["avant 5.2.18"], "first_unaffected": ["5.2.18"], "source": "NVD"}, {"vendor": "Wordpress", "product": "Wordpress", "ranges": ["jusqu'à 4.7 (incluse)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Joomla", "product": "Joomla!", "ranges": ["de 1.5.0 à 3.6.5 (incluse)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "n/a", "product": "n/a", "ranges": ["n/a"], "first_unaffected": [], "source": "CVE.org"}], "notes_kev": ["https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18", "https://github.com/advisories/GHSA-5f37-gxvh-23v6", "https://nvd.nist.gov/vuln/detail/CVE-2016-10033"]}, "consulted_at": "2026-10-07T08:00:50.046166+00:00"}