CVE-2025-4278
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in GitLab
CVSS v3
8.7
HIGH
EPSS Score
10.6 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
none
SSVC status
Description
An issue has been discovered in GitLab CE/EE affecting all versions starting with 18.0 before 18.0.2. Under certain conditions html injection in new search page could lead to account takeover.
Technical details
- Published
- 2025-06-12
- Last Modified
- 2025-08-08
Frequently asked questions
What is CVE-2025-4278?
An issue has been discovered in GitLab CE/EE affecting all versions starting with 18.0 before 18.0.2. Under certain conditions html injection in new search page could lead to account takeover.
Is CVE-2025-4278 actively exploited?
Active exploitation of CVE-2025-4278 has not been confirmed. Its EPSS score was 10.6% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2025-4278?
CVE-2025-4278 has a CVSS v3 base score of 8.7 (HIGH severity).
Is CVE-2025-4278 affecting your environment?
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