CVE-2025-6926 | BDVDB-2026-284563 Detail

Wikimedia FoundationMediawiki - CentralAuth Extension

Description#

Improper Authentication vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows : Bypass Authentication.This issue affects Mediawiki - CentralAuth Extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.

Impact#

CAPEC-178: Bypass Authentication

Weaknesses#

CWE-287 Improper Authentication

References#

Exploit#

No public exploit known

History#

Version 12025-07-03Record published in the CVE List.
Version 22025-11-03Most recent update recorded in the CVE List.

Published

Published: 2025-07-03
Last modified: 2025-11-03

Vendor information

Vendor: Wikimedia Foundation
Product: Mediawiki - CentralAuth Extension

All Wikimedia Foundation vulnerabilities

Score

8.8 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 39.5.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Authentication Issues

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 1.39.x and < 1.39.13
Fixed
1.39.13
Vulnerable
>= 1.42.x and < 1.42.7
Fixed
1.42.7
Vulnerable
>= 1.43.x and < 1.43.2
Fixed
1.43.2

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.8 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).