CVE-2025-34157
published 2025-08-27CVE-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…
PriorityP344critical9CVSS 3.1
AVNACLPRLUIRSCCHIHAH
EPSS
0.46%
39.2th percentile
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.
Affected
409 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| coollabs | coolify | < 4.0.0 | 4.0.0 |
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CVSS provenance
nvdv3.19.0CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
nvdv4.09.4CRITICALCVSS: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
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VulDB
coollabsio Coolify up to 4.0.0-beta.420.6 Project Creation Workflow cross site scripting
vuldb·2026-07-15·CVSS 9.0
CVE-2025-34157 [CRITICAL] coollabsio Coolify up to 4.0.0-beta.420.6 Project Creation Workflow cross site scripting
A vulnerability was found in coollabsio Coolify up to 4.0.0-beta.420.6. It has been rated as problematic. Impacted is an unknown function of the component Project Creation Workflow. This manipulation causes cross site scripting.
This vulnerability is handled as CVE-2025-34157. The attack can be initiated remotely. There is not any exploit available.
Upgrading the affected component is advised.
GHSA
GHSA-6p37-qg9q-mprw: Coolify versions prior to v4
ghsa_unreviewed·2025-08-27
CVE-2025-34157 [CRITICAL] CWE-20 GHSA-6p37-qg9q-mprw: Coolify versions prior to v4
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-08-27
Published