GitLab 18.2.2 < 18.5.5 / 18.6 < 18.6.3 / 18.7 < 18.7.1 (CVE-2025-9222)

medium Nessus Plugin ID 298869

Synopsis

The version of GitLab installed on the remote host is affected by a vulnerability.

Description

The version of GitLab installed on the remote host is affected by a vulnerability, as follows:

- GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2.2 before 18.5.5, 18.6 before 18.6.3, and 18.7 before 18.7.1 that could have allowed an authenticated user to achieve stored cross-site scripting by exploiting GitLab Flavored Markdown. (CVE-2025-9222)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to GitLab version 18.5.5, 18.6.3, 18.7.1 or later.

See Also

https://gitlab.com/gitlab-org/gitlab/-/issues/562561

https://hackerone.com/reports/3297483

http://www.nessus.org/u?adbd9e8e

http://www.nessus.org/u?ccfee4ce

Plugin Details

Severity: Medium

ID: 298869

File Name: gitlab_cve-2025-9222.nasl

Version: 1.1

Type: combined

Agent: unix

Family: CGI abuses

Published: 2/12/2026

Updated: 2/12/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

CVSS Score Source: CVE-2025-9222

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:gitlab:gitlab

Required KB Items: installed_sw/GitLab

Exploit Ease: No known exploits are available

Patch Publication Date: 1/9/2026

Vulnerability Publication Date: 1/9/2026

Reference Information

CVE: CVE-2025-9222