🛡️ CVE-2022-34912 on Debian — mediawiki

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

An issue was discovered in MediaWiki before 1.37.3 and 1.38.x before 1.38.1. The contributions-title, used on Special:Contributions, is used as page title without escaping. Hence, in a non-default configuration where a username contains HTML entities, it won't be escaped.

Distribution advisory

This page covers CVE-2022-34912 as tracked by Debian, for the package mediawiki. The fix is available in version 1:1.35.7-1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity low, availability none.

Affected software

DEBIAN-CVE-2022-34912 is recorded against 1 package.

mediawiki (fixed in 1:1.35.7-1)

Timeline and source

Published on 2 July 2022 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2022-34912 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Base record Ubuntu

Details

Severity Unknown

CVSS Score N/A

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

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2022-07-02

Updated 2026-08-12

Modified 2026-08-04

Fix URL N/A

Affected Packages

Software	From version	Fixed in
mediawiki	—	1:1.35.7-1

References

ADVISORY https://security-tracker.debian.org/tracker/CVE-2022-34912

🔗 NVD 🔗 Mitre

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