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Vulnerability details: VCID-r952-dxkq-vbdy
Vulnerability ID VCID-r952-dxkq-vbdy
Aliases CVE-2025-6926
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 5.3
Risk 2.6
Affected and Fixed Packages Package Details
Weaknesses (1)
System Score Found at
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00107 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00113 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00113 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00113 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00113 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00113 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00113 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00113 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00113 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00113 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
epss 0.00116 https://api.first.org/data/v1/epss?cve=CVE-2025-6926
cvssv3.1 8.8 https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1165117
ssvc Track https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1165117
cvssv3.1 8.8 https://phabricator.wikimedia.org/T389010
ssvc Track https://phabricator.wikimedia.org/T389010
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1165117
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none


Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-07-03T17:40:14Z/ Found at https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1165117
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://phabricator.wikimedia.org/T389010
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none


Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-07-03T17:40:14Z/ Found at https://phabricator.wikimedia.org/T389010
Exploit Prediction Scoring System (EPSS)
Percentile 0.29627
EPSS Score 0.00107
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T09:25:26.779623+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2025/6xxx/CVE-2025-6926.json 37.0.0