XSS Vulnerability in GitLab by GitLab Inc.
CVE-2025-0376

8.7HIGH

Key Information:

Vendor
Gitlab
Status
Gitlab
Vendor
CVE Published:
12 February 2025

Badges

👾 Exploit Exists🟡 Public PoC

Summary

An XSS vulnerability has been identified in multiple versions of GitLab CE/EE, impacting versions from 13.3 up to 17.6.5, 17.7 up to 17.7.4, and 17.8 up to 17.8.2. This vulnerability allows attackers to execute unauthorized actions through a flawed change page mechanism, potentially compromising sensitive information and altering user permissions. Ensuring proper updates and security measures is essential for users to safeguard their projects.

Affected Version(s)

GitLab 13.3 < 17.6.5

GitLab 17.7 < 17.7.4

GitLab 17.8 < 17.8.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-0376 - Proof of Concept

References

https://gitlab.com/gitlab-org/gitlab/-/issues/512603
issue-trackingpermissions-required
https://hackerone.com/reports/2930243
technical-descriptionexploitpermissions-required

CVSS V3.1

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks [yvvdwf](https://hackerone.com/yvvdwf) for reporting this vulnerability through our HackerOne bug bounty program
.