Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2025-34157

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 28.4%
CVSS Severity
CVSS v3 Score 9.0
Products affected by CVE-2025-34157


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