High severity · published Dec 11, 2025
CVE-2025-12716
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
8.7
CVSS
0.4%
EPSS
No
On KEV
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that, under certain conditions could have allowed an authenticated user to perform unauthorized actions on behalf of another user by creating wiki pages with malicious content.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
18.4 before 18.4.6; 18.5 before 18.5.4; 18.6 before 18.6.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-12716
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-12716
Release Notes
https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/
Broken Link
https://gitlab.com/gitlab-org/gitlab/-/issues/579548
Permissions Required
https://hackerone.com/reports/3405832
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