Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-34157

Severity CVSS v4.0:
CRITICAL
Type:
CWE-20 Input Validation
Publication date:
27/08/2025
Last modified:
19/09/2025

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.

Impact

Vector 4.0
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 CVSS v4.0 Severity and Metrics:

Base Score: 9.40 CRITICAL
Vector: 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

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): Low
User Interaction (UI): Passsive
Confidentiality (VC): High
Integrity (VI): High
Availability (VA): High
Confidentiality (SC): High
Integrity (SI): High
Availability (SA): High

Base Score 4.0
9.40
Severity 4.0
CRITICAL
Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.00 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
9.00
Severity 3.x
CRITICAL

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:coollabs:coolify:*:*:*:*:*:*:*:* 4.0.0 (excluding)
cpe:2.3:a:coollabs:coolify:4.0.0:beta100:*:*:*:*:*:*
cpe:2.3:a:coollabs:coolify:4.0.0:beta101:*:*:*:*:*:*
cpe:2.3:a:coollabs:coolify:4.0.0:beta102:*:*:*:*:*:*
cpe:2.3:a:coollabs:coolify:4.0.0:beta103:*:*:*:*:*:*
cpe:2.3:a:coollabs:coolify:4.0.0:beta104:*:*:*:*:*:*
cpe:2.3:a:coollabs:coolify:4.0.0:beta105:*:*:*:*:*:*
cpe:2.3:a:coollabs:coolify:4.0.0:beta106:*:*:*:*:*:*
cpe:2.3:a:coollabs:coolify:4.0.0:beta107:*:*:*:*:*:*
cpe:2.3:a:coollabs:coolify:4.0.0:beta108:*:*:*:*:*:*
cpe:2.3:a:coollabs:coolify:4.0.0:beta109:*:*:*:*:*:*
cpe:2.3:a:coollabs:coolify:4.0.0:beta110:*:*:*:*:*:*
cpe:2.3:a:coollabs:coolify:4.0.0:beta111:*:*:*:*:*:*
cpe:2.3:a:coollabs:coolify:4.0.0:beta112:*:*:*:*:*:*
cpe:2.3:a:coollabs:coolify:4.0.0:beta113:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools