What is the CVSS score of CVE-2025-2255?

CVE-2025-2255 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: 0.2%.

Which versions of Gitlab are affected by CVE-2025-2255?

Organizations using Gitlab EE/CE for AppSec affecting all face significant risk from CVE-2025-2255, a cross-site scripting vulnerability rated CVSS 8.7.

Is there a public PoC exploit available for CVE-2025-2255?

Yes, a public proof-of-concept exploit is available for CVE-2025-2255. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2025-2255?

Within 7 days: Identify all affected systems running Gitlab EE/CE for AppSec affecting all and apply vendor patches promptly. Verify anti-CSRF tokens and content security policies are enforced.

Gitlab CVE-2025-2255

HIGH

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

2025-03-27 cve@gitlab.com

Gitlab XSS

8.7

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.7 HIGH

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

Primary rating from NVD · only source for this CVE.

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 - 18:33 vuln.today

PoC Detected

Aug 13, 2025 - 01:11 vuln.today

Public exploit code

CVE Published

Mar 27, 2025 - 13:15 nvd

HIGH 8.7

DescriptionCVE.org

An issue has been discovered in Gitlab EE/CE for AppSec affecting all versions from 13.5.0 before 17.8.6, 17.9 before 17.9.3, and 17.10 before 17.10.1. Certain error messages could allow Cross-Site Scripting attacks (XSS). for AppSec.

AnalysisAI

An issue has been discovered in Gitlab EE/CE for AppSec affecting all versions from 13.5.0 before 17.8.6, 17.9 before 17.9.3, and 17.10 before 17.10.1. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

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 EE/CE for AppSec affecting all versions from 13.5.0 before 17.8.6, 17.9 before 17.9.3, and 17.10 before 17.10.1. Certain error messages could allow Cross-Site Scripting attacks (XSS). for AppSec. Affected products include: Gitlab. Version information: before 17.8.6.

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-2025-2255 vulnerability details – vuln.today

Back

Gitlab CVE-2025-2255

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

More from same product – last 7 days

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External POC / Exploit Code