CVE-2023-6371

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

Severity Score

8.7

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

An issue has been discovered in GitLab CE/EE affecting all versions before 16.8.5, all versions starting from 16.9 before 16.9.3, all versions starting from 16.10 before 16.10.1. A wiki page with a crafted payload may lead to a Stored XSS, allowing attackers to perform arbitrary actions on behalf of victims.

Se descubrió un problema en GitLab CE/EE que afecta a todas las versiones anteriores a 16.8.5, todas las versiones desde 16.9 anteriores a 16.9.3, todas las versiones desde 16.10 anteriores a 16.10.1. Una página wiki con un payload manipulado puede generar un XSS almacenado, lo que permite a los atacantes realizar acciones arbitrarias en nombre de las víctimas.

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2023-11-28 CVE Reserved
2024-03-28 CVE Published
2025-05-18 EPSS Updated
2025-05-23 CVE Updated
2025-05-23 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (2)

URL	Tag	Source
https://gitlab.com/gitlab-org/gitlab/-/issues/433021	Issue Tracking

URL	Date	SRC
https://hackerone.com/reports/2257080	2025-05-23

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
GitLab Search vendor "GitLab"		GitLab Search vendor "GitLab" for product "GitLab"				>= 0.0.0 < 16.8.5 Search vendor "GitLab" for product "GitLab" and version " >= 0.0.0 < 16.8.5"		en		Affected
GitLab Search vendor "GitLab"		GitLab Search vendor "GitLab" for product "GitLab"				>= 16.9.0 < 16.9.3 Search vendor "GitLab" for product "GitLab" and version " >= 16.9.0 < 16.9.3"		en		Affected
GitLab Search vendor "GitLab"		GitLab Search vendor "GitLab" for product "GitLab"				>= 16.10.0 < 16.10.1 Search vendor "GitLab" for product "GitLab" and version " >= 16.10.0 < 16.10.1"		en		Affected