Home/CVE/Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Starting in version 6.
CVE

CVE-2023-46735

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Starting in version 6.

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Starting in version 6.0.0 and prior to version 6.3.8, the error message in WebhookController returns unescaped user-submitted input. As of version 6.3.8, WebhookController now doesn't return any user-submitted input in its response.

MEDIUM · CVSS 6.1 EPSS 0.03113
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

1
sensiolabs symfony>= 6.0.0 and < 6.3.8
▤

Affected Packages

2
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Packagist symfony/symfony MEDIUM fixed in 6.3.8
Packagist symfony/webhook MEDIUM fixed in 6.3.8
▣

Scoring & Timeline

6.1
MEDIUM · CVSS v3.1 · security-advisories@github.com
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 NVD10 Nov 2023 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
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/commit/8128c302430394f639e818a7103b3f6815d8d962Patch
https://github.com/symfony/symfony/security/advisories/GHSA-72x2-5c85-6wmrPatchVendor Advisory
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