Symfony potential Cross-site Scripting in WebhookController
Description
The error message in WebhookController returns unescaped user-submitted input.
Resolution
WebhookController now doesn't return any user-submitted input in its response.
The patch for this issue is available here for branch 6.3.
Credits
We would like to thank Maxime Aknin for reporting the issue and to Nicolas Grekas for providing the fix.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | symfony/symfony | >= 6.3.0, < 6.3.8 | 6.3.8 |
| Composer package | symfony/webhook | >= 6.3.0, < 6.3.8 | 6.3.8 |
References
- https://github.com/symfony/symfony/security/advisories/GHSA-72x2-5c85-6wmr
- https://nvd.nist.gov/vuln/detail/CVE-2023-46735
- https://github.com/symfony/symfony/commit/8128c302430394f639e818a7103b3f6815d8d962
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2023-46735.yaml
- https://github.com/symfony/symfony
- https://symfony.com/cve-2023-46735
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
symfony/symfony, symfony/webhook- Disclosed
- 12.11.2023
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-72x2-5c85-6wmr - CC BY 4.0
Vulnerability history: symfony/webhook
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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