CVE-2025-1763: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

8.7 CVSS

Description

An issue has been discovered in GitLab EE that allows for cross-site-scripting attack and content security policy bypass in a user's browser under specific conditions, affecting all versions from 16.6 before 17.9.7, 17.10 before 17.10.5, and 17.11 before 17.11.1.

Classification

CVE ID: CVE-2025-1763

CVSS Base Severity: HIGH

CVSS Base Score: 8.7

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

Problem Types

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

Affected Products

Vendor: GitLab

Product: GitLab

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 2.9% (scored less or equal to compared to others)

EPSS Date: 2025-06-07 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-1763
https://gitlab.com/gitlab-org/gitlab/-/issues/521718
https://hackerone.com/reports/3016600

Timeline