CVE-2025-2254 | THREATINT

Description

An issue has been discovered in GitLab CE/EE affecting all versions from 17.9 before 17.10.8, 17.11 before 17.11.4, and 18.0 before 18.0.2. Improper output encoding in the snipper viewer functionality lead to Cross-Site scripting attacks.

Reserved 2025-03-12 | Published 2025-06-12 | Updated 2025-06-12 | Assigner GitLab

HIGH: 8.7CVSS: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')

Product status

Default status

unaffected

17.9 before 17.10.8

affected

17.11 before 17.11.4

affected

18.0 before 18.0.2

affected

Credits

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

References

gitlab.com/gitlab-org/gitlab/-/issues/524636 (GitLab Issue #524636) issue-tracking permissions-required

hackerone.com/reports/2973939 (HackerOne Bug Bounty Report #2973939) technical-description exploit permissions-required

cve.org (CVE-2025-2254)

nvd.nist.gov (CVE-2025-2254)

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