Exposure of Sensitive Information to an Unauthorized Actor vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth Extension allows Resource Leak Exposure.This issue affects Mediawiki - CentralAuth Extension: from master before 1.39.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact Low

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00063.

Exploitation poc

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
The Wikimedia Foundation Mediawiki - CentralAuth Extension unaffected
Version Status Constraints
master affected < 1.39

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gerrit.wikimedia.org/r/q/I15b14cbff28ba769e72e4d037306d2395e74ad85 cve-icon cve-icon
https://phabricator.wikimedia.org/T400892 cve-icon cve-icon cve-icon
History

Mon, 20 Oct 2025 20:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 20 Oct 2025 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Mediawiki
Mediawiki mediawiki
Vendors & Products Mediawiki
Mediawiki mediawiki

Sat, 18 Oct 2025 04:45:00 +0000

Type Values Removed Values Added
Description Exposure of Sensitive Information to an Unauthorized Actor vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth Extension allows Resource Leak Exposure.This issue affects Mediawiki - CentralAuth Extension: from master before 1.39.
Title UserInfoCard: activeLocalBlocksAllWikis does not do permissions checks
Weaknesses CWE-200
References
Metrics cvssV4_0

{'score': 6.9, '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2025-10-20T16:28:10.550Z

Reserved: 2025-10-18T04:03:51.880Z

Link: CVE-2025-62669

cve-icon Vulnrichment

Updated: 2025-10-20T16:28:00.418Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-18T05:15:34.573

Modified: 2025-10-21T19:31:25.450

Link: CVE-2025-62669

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-10-20T13:21:40Z

Weaknesses