CVE-2026-58028CWE-79

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

published July 1, 2026

CVSS v4.0
0.0
EPSS
0%
Percentile
17.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
0.0 · NONE
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00267 · 17.9th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-01T15:15Z
EPSS history
Timeline
  • 01 JUL 15:15Z
    Pretty-printed API output combined with centralauthtoken allows XSS with certain gadgets
    cvelistv5