CVE-2025-34157

CRITICAL EPSS 35.8%
Published Aug 27, 202510mo ago · Modified Jun 17, 20261w ago
9.4 CVSS 4.0
Critical
Find Similar
Published Aug 27, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
9.4
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
35.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-20 Improper Input Validation Validation
CWE-79 Cross-site Scripting Injection

Affected Products 408

VendorProductVersionRange
coollabscoolify* <4.0.0
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References 3

  • coolify.io https://coolify.io/
    Product
  • github.com https://github.com/Eyodav/CVE-2025-34157
    Third Party Advisory
  • github.com https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.420.7
    Release Notes

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.