Home/CVE/An issue was discovered in Symfony before 4.2.12 and 4.3.x before 4.3.8. The VarExport component incorrectly escapes str
CVE

CVE-2019-11325

An issue was discovered in Symfony before 4.2.12 and 4.3.x before 4.3.8. The VarExport component incorrectly escapes str

An issue was discovered in Symfony before 4.2.12 and 4.3.x before 4.3.8. The VarExport component incorrectly escapes strings, allowing some specially crafted ones to escalate to execution of arbitrary PHP code. This is related to symfony/var-exporter.

CRITICAL · CVSS 9.8 EPSS 0.04687
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-116Improper Encoding or Escaping of Output
▤

Affected Products & Versions

2
sensiolabs symfony>= 4.2.0 and < 4.2.12
sensiolabs symfony>= 4.3.0 and < 4.3.8
▣

Scoring & Timeline

9.8
CRITICAL · 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 NVD21 Nov 2019 · 11:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/symfony/symfony/releases/tag/v4.3.8Release NotesThird Party Advisory
https://github.com/symfony/var-exporter/compare/d8bf442...57e00f3PatchThird Party Advisory
https://symfony.com/blog/cve-2019-11325-fix-escaping-of-strings-in-varexporterVendor Advisory
https://symfony.com/blog/symfony-4-3-8-releasedRelease NotesVendor Advisory
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