CVE-2026-58517CWE-288

Blocked users can create and edit WikiLambda objects

Medium · published July 1, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
24.8
In the wild
Unconfirmed
What it is

Improper neutralization of input terminators vulnerability in The Wikimedia Foundation Mediawiki - WikiLambda Extension allows Authentication Bypass.

This issue affects Mediawiki - WikiLambda Extension: from * before 1.43.9,1.44.6,1.45.4.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L
EPSS
0.00329 · 24.8th percentile
Weakness
CWE-288 · Authentication Bypass Using an Alternate Path or Channel
Published
2026-07-01T18:23Z
EPSS history
Timeline
  • 01 JUL 18:23Z
    Blocked users can create and edit WikiLambda objects
    cvelistv5