What’s Vulnerable › Vulnerabilities

CVE-2019-11325

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-21 · updated 2026-06-17
• Weakness: CWE-116

Description

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.

Affected products

• symfony: from 4.2.0 before 4.2.12; from 4.3.0 before 4.3.8 — fixed in 4.2.12, 4.3.8

How to fix

Upgrade to a fixed version: symfony 4.2.12, 4.3.8. Check the vendor advisory for mitigations.

References

• https://github.com/symfony/symfony/releases/tag/v4.3.8
• https://github.com/symfony/var-exporter/compare/d8bf442...57e00f3
• https://symfony.com/blog/cve-2019-11325-fix-escaping-of-strings-in-varexporter
• https://symfony.com/blog/symfony-4-3-8-released
• https://github.com/symfony/symfony/releases/tag/v4.3.8
• https://github.com/symfony/var-exporter/compare/d8bf442...57e00f3
• https://symfony.com/blog/cve-2019-11325-fix-escaping-of-strings-in-varexporter
• https://symfony.com/blog/symfony-4-3-8-released

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