Home/CVE/PHPMailer before 5.2.27 and 6.x before 6.0.6 is vulnerable to an object injection attack.
CVE

CVE-2018-19296

PHPMailer before 5.2.27 and 6.x before 6.0.6 is vulnerable to an object injection attack.

PHPMailer before 5.2.27 and 6.x before 6.0.6 is vulnerable to an object injection attack.

HIGH · CVSS 8.8 EPSS 0.01475
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
CWE-502Deserialization of Untrusted Data
▤

Affected Products & Versions

5
phpmailer project phpmailer< 5.2.27
phpmailer project phpmailer>= 6.0.0 and < 6.0.6
debian linuxall versions
fedoraproject fedoraall versions
wordpress>= 3.7 and <= 5.7
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Packagist phpmailer/phpmailer HIGH fixed in 5.2.27
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Nov 2018 · 09:29 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

1
usnUSN-5956-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.27Release NotesVendor Advisory
https://github.com/PHPMailer/PHPMailer/releases/tag/v6.0.6Release NotesVendor Advisory
https://lists.debian.org/debian-lts-announce/2018/12/msg00020.htmlMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT/
https://www.debian.org/security/2018/dsa-4351Third Party Advisory
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