Vulnerability Description
Coolify versions prior to v4.0.0-beta.420.6 are vulnerable to a stored cross-site scripting (XSS) attack in the project creation workflow. An authenticated user with low privileges can create a project with a maliciously crafted name containing embedded JavaScript. When an administrator attempts to delete the project or its associated resource, the payload executes in the admin’s browser context. This results in full compromise of the Coolify instance, including theft of API tokens, session cookies, and access to WebSocket-based terminal sessions on managed servers.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Coollabs | Coolify | < 4.0.0 |
Related Weaknesses (CWE)
References
- https://coolify.io/Product
- https://github.com/Eyodav/CVE-2025-34157Third Party Advisory
- https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.420.7Release Notes
FAQ
What is CVE-2025-34157?
CVE-2025-34157 is a vulnerability with a CVSS score of 9.0 (CRITICAL). Coolify versions prior to v4.0.0-beta.420.6 are vulnerable to a stored cross-site scripting (XSS) attack in the project creation workflow. An authenticated user with low privileges can create a projec...
How severe is CVE-2025-34157?
CVE-2025-34157 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2025-34157?
Check the references section above for vendor advisories and patch information. Affected products include: Coollabs Coolify.