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Description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Coolify versions prior to and including 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 (e.g., member role) can create a project with a maliciously crafted name containing embedded JavaScript. When an administrator later attempts to delete the project or its associated resource, the payload automatically executes in the admin’s browser context. Version 4.0.0-beta.420.7 contains a patch for the issue.

PUBLISHED Reserved 2025-09-09 | Published 2026-01-05 | Updated 2026-01-05 | Assigner GitHub_M




CRITICAL: 9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Problem types

CWE-116: Improper Encoding or Escaping of Output

Product status

< 4.0.0-beta.420.7
affected

References

github.com/...oolify/security/advisories/GHSA-h52r-jxv9-9vhf

cve.org (CVE-2025-59158)

nvd.nist.gov (CVE-2025-59158)

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