GIVE YOUR AGENT THE EVIDENCE

Set up in your agent.

One prompt to get started. Paste it into your coding agent to connect cve.new through MCP and bring vulnerability context into your workflow.

Your agent needs remote MCP support and access to https://cve.new/mcp.

Read the setup guide

GIVE YOUR AGENT THE EVIDENCE

Investigate in your agent.

Turn this advisory into a focused investigation. Ask your agent to check your project’s versions, explain the evidence, and suggest a compatible fix.

Your agent needs remote MCP support and access to https://cve.new/mcp.

Read the setup guide

cve.new
Check your stack
GHSA-72x2-5c85-6wmrmedium6.1

Symfony potential Cross-site Scripting in WebhookController

Impact

The error message in WebhookController returns unescaped user-submitted input.

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

symfony/webhook Packagist
Affected rangeRecorded fix
From 6.3.0 before 6.3.8Ecosystem versions6.3.8

Version evidence: OSV · GHSA-72x2-5c85-6wmr

View original version evidence (1 explicit versions)
symfony/symfony Packagist
Affected rangeRecorded fix
From 6.3.0 before 6.3.8Ecosystem versions6.3.8

Version evidence: OSV · GHSA-72x2-5c85-6wmr

View original version evidence (8 explicit versions)

Original source description

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.

References