CVE•Published 2025-08-27•Modified 2026-07-14•1 article on news•6 live references•NVD data

CVE-2025-34157Coollabs · Coolify

Vulnerability data via NVD (ingested)

CVSS v3.1

9.0

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

EPSS percentile

Exploit Prediction Scoring System · top 64% of all CVEs

Weaknesses (CWE)

CWE-20Improper Input Validation CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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.

Timeline

Published 2025-08-27

Modified 2026-07-14

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.

Shodan · vuln tag

vuln:CVE-2025-34157

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Coollabs Coolify"

All exposed Coollabs Coolify instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Coolify"

HTTP body or banner mentions "Coolify" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2025-34157