What is the CVSS score of CVE-2025-9642?

CVE-2025-9642 has a CVSS 3.1 base score of 8.7 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N. EPSS exploitation probability: 0.0%.

Which versions of Gitlab are affected by CVE-2025-9642?

Organizations using GitLab CE/EE affecting all face significant risk from CVE-2025-9642, a cross-site scripting vulnerability rated CVSS 8.7.

How to fix or mitigate CVE-2025-9642?

Within 30 days: Identify all affected systems running GitLab CE/EE affecting all and apply vendor patches as part of regular patch cycle. Verify anti-CSRF tokens and content security policies are enforced.

Gitlab CVE-2025-9642

HIGH

Cross-site Scripting (XSS) (CWE-79)

2025-09-26 cve@gitlab.com

XSS Gitlab

8.7

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:14 vuln.today

CVE Published

Sep 26, 2025 - 09:15 nvd

HIGH 8.7

DescriptionNVD

An issue has been discovered in GitLab CE/EE affecting all versions from 14.10 before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1 that could allow an attacker to inject malicious content that may lead to account takeover.

AnalysisAI

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. An issue has been discovered in GitLab CE/EE affecting all versions from 14.10 before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1 that could allow an attacker to inject malicious content that may lead to account takeover. Affected products include: Gitlab. Version information: before 18.2.7.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

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CVE-2025-9642 vulnerability details – vuln.today

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