CVE-2026-58028

MEDIUM

Pretty-printed API output combined with centralauthtoken allows XSS with certain gadgets

Title source: cna
STIX 2.1

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia Foundation CentralAuth. This vulnerability is associated with program files includes/Api/ApiFormatBase.Php, includes/Api/ApiHelp.Php, includes/ResourceLoader/Module.Php, includes/Hooks/Handlers/PageDisplayHookHandler.Php, includes/LogFormatter/PermissionChangeLogFormatter.Php. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9; CentralAuth: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

References (1)

Core 1

Scores

CVSS v3 5.4
EPSS 0.0027
EPSS Percentile 18.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (4)
mediawiki/mediawiki 1.46.0 rc0
mediawiki/mediawiki 1.43.0 - 1.43.9
Wikimedia Foundation/CentralAuth < 1.46.0, 1.45.4, 1.44.6, 1.43.9
Wikimedia Foundation/MediaWiki < 1.46.0, 1.45.4, 1.44.6, 1.43.9
Published Jul 01, 2026
Tracked Since Jul 01, 2026