XSS in Coollabs Coolify
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 conta…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.004 (36.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.
Affected products
- Coollabs Coolify — versions 4.0.0
- Coollabs Technologies Coolify — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- disclosure@vulncheck.com (vendor-advisory, Release Notes, patch)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (technical-description, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2025-34157?
- CVE-2025-34157 is a critical-severity vulnerability in Coollabs Coolify, classified under Improper Input Validation. CVSS score: 9.0/10. Published 2025-08-27.
- How severe is CVE-2025-34157?
- Critical severity. CVSS v3 base score is 9.0 out of 10.
- Is CVE-2025-34157 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.