CVE-2019-11325 json
Improper Input Validation in Symfony
published 2019-11-21 6 y ago modified 2026-06-17 4 mo ago also GHSA-w4rc-rx25-8m86 , EUVD-2020-0317
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.4%
- EPSS 3.4% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- packagist symfony/symfony 4.2.12, 4.3.8
- packagist symfony/var-exporter 4.2.12, 4.3.8
- sensiolabs symfony 4.2.12, 4.3.8
- symfony Debian 14, Debian 13, Debian 12 4.3.8+dfsg-1
debian advisories DEBIAN-CVE-2019-11325
Exploit prediction
3.35% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | symfony/symfony | >=4.2.0, <4.2.12 >=4.3.0, <4.3.8 |
4.2.12 4.3.8 |
| packagist | symfony/var-exporter | >=4.2.0, <4.2.12 >=4.3.0, <4.3.8 |
4.2.12 4.3.8 |
Classification
- Weakness
-
- CWE-116 Improper Encoding or Escaping of Output
References
-
github.com
/symfony/var-exporter/compare/d8bf442...57e00f3
web, patch, third-party-advisory
-
symfony.com
/blog/symfony-4-3-8-released
web, release-notes, vendor-advisory
-
symfony.com
/blog/cve-2019-11325-fix-escaping-of-strings-in-varexporter
web, vendor-advisory
-
github.com
/symfony/symfony/releases/tag/v4.3.8
web, release-notes, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2019-11325
advisory
-
github.com
/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2019-11325.yaml
web
-
github.com
/FriendsOfPHP/security-advisories/blob/master/symfony/var-exporter/CVE-2019-11325.yaml
web
-
symfony.com
/cve-2019-11325
web
Sources
- CVE List CVE-2019-11325
- GitHub Advisory GHSA-w4rc-rx25-8m86
- NVD CVE-2019-11325
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