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CVE-2025-34157

34
FAUCET Score

CVE-2025-34157 is a critical stored cross-site scripting (XSS) vulnerability affecting Coolify versions prior to v4.0.0-beta.420.6. An authenticated, low-privileged user can embed malicious JavaScript in a project name, which executes in an administrator's browser when they interact with the project, leading to full compromise of the Coolify instance. This vulnerability has a CVSS score of 9.0 (CRITICAL) due to its network-based attack vector, low complexity, and high impact on confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.0CPE matchmatch criteria
cpe:2.3:a:coollabs:coolify:*:*:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:coollabs:coolify:4.0.0:beta100:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:coollabs:coolify:4.0.0:beta101:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:coollabs:coolify:4.0.0:beta102:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:coollabs:coolify:4.0.0:beta103:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

9.4CRITICAL

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
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
HIGH
SS Integrity
HIGH
SS Availability
HIGH
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 33rd percentile among its peer group of 265 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.6 Bluesky, 0.3 Mastodon, and 1.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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