CVE-2026-58032 MEDIUM

CVE-2026-58032: mw.Api.getErrorMessage() may return injected HTML if used without errorformat=html

Vendor Wikimedia Foundation
Product MediaWiki
Weakness CWE-79 · XSS
Published July 1, 2026
Last update July 1, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Api/index.Js. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

Key dates

02Disclosure timeline

July 1, 2026 CVE published