CVE-2025-34157
CRITICALDescription
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.
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CVSS v3.1 Score
9.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Weakness Type (CWE)
CWE-20
Improper Input Validation
CWE-79
Cross-site Scripting (XSS)
Affected Products
| Vendor | Product |
|---|---|
| coollabs | coolify |
| coollabs | coolify |
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References
Frequently Asked Questions
What is 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 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. It has a CVSS v3.1 base score of 9.0 (CRITICAL).
How severe is CVE-2025-34157? +
CVE-2025-34157 has a CVSS v3.1 score of 9.0 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.
What products are affected by CVE-2025-34157? +
CVE-2025-34157 affects products from coollabs, specifically: coolify. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-34157? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.
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