CVE-2026-58037CWE-79

Core log entries for exceptions and XSS issues in log entry formatting code that may be caused by user-controlled input

published July 1, 2026

CVSS v4.0
0.0
EPSS
0%
Percentile
18.2
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.

This vulnerability is associated with program files includes/Language/Language.Php, includes/Logging/BlockLogFormatter.Php, includes/Logging/LogFormatter.Php, includes/Logging/PatrolLogFormatter.Php, includes/Logging/RenameuserLogFormatter.Php, includes/Logging/TagLogFormatter.Php, includes/Specials/SpecialVersion.Php.

This issue affects MediaWiki: 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:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00270 · 18.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-01T14:51Z
EPSS history
Timeline
  • 01 JUL 14:51Z
    Core log entries for exceptions and XSS issues in log entry formatting code that may be caused by user-controlled input
    cvelistv5