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CVE Vulnerability Details :

CVE-2026-58027

PUBLISHED

More Info Official Page

Assigner-wikimedia-foundation

Assigner Org ID-c4f26cc8-17ff-4c99-b5e2-38fc1793eacc

Published At-01 Jul, 2026 | 15:01

Updated At-01 Jul, 2026 | 15:49

▼CVE Numbering Authority (CNA)

QueryAbuseFilter API can be used to see the hit count of private filters, which is hidden in the UI

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation AbuseFilter. This vulnerability is associated with program files includes/Api/QueryAbuseFilters.Php. This issue affects AbuseFilter: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

Affected Products

Vendor

Wikimedia Foundation

Product

AbuseFilter

Repo

https://gerrit.wikimedia.org/g/mediawiki/extensions/AbuseFilter/+/refs/heads/master

Program Files

includes/Api/QueryAbuseFilters.php

Default Status

unaffected

Versions

Affected

From * before 1.46.0, 1.45.4, 1.44.6, 1.43.9 (semver)

Problem Types

Type	CWE ID	Description
CWE	CWE-200	CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Type: CWE

CWE ID: CWE-200

Description: CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Metrics

Version	Base score	Base severity	Vector
4.0	5.3	MEDIUM	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Version: 4.0

Base score: 5.3

Base severity: MEDIUM

Vector:

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

Hyperlink	Resource
https://phabricator.wikimedia.org/T406954	N/A

Hyperlink: https://phabricator.wikimedia.org/T406954

Resource: N/A

▼Authorized Data Publishers (ADP)

CISA ADP Vulnrichment

Affected Products

Affected

Problem Types

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Replaced By

Rejected Reason

References

Affected Products

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References