CVE-2025-34157

CRITICAL

9.0

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.

CVE Details

CVSS v3.1 Score9.0

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionREQUIRED

Published8/27/2025

Last Modified9/19/2025

Sourcenvd

Honeypot Sightings0

Affected Products

coollabs:coolify

Weaknesses (CWE)

CWE-20CWE-79CWE-79

References

https://coolify.io/(disclosure@vulncheck.com)

https://github.com/Eyodav/CVE-2025-34157(disclosure@vulncheck.com)

https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.420.7(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.