CVE-2025-53495

Unauthorized Disclosure of IP Reputation in AbuseFilter

Published Jul 7, 2025 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed

Description

Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - AbuseFilter Extension allows Unauthorized Access.This issue affects Mediawiki - AbuseFilter Extension: from 1.43.X before 1.43.2.

Affected Products

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

Vendor Product Default status Versions

Wikimedia Foundation

Mediawiki - AbuseFilter Extension

unaffected

Version	Status	Constraints
`1.43.x`	affected	< 1.43.2

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2025-20315	Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - AbuseFilter Extension allows Unauthorized Access.This issue affects Mediawiki - AbuseFilter Extension: from 1.43.X before 1.43.2.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.330% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/AbuseFilter/+/1166040
https://phabricator.wikimedia.org/T396750

History

Jul 13, 2025 1:45 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00036}`	epss `{'score': 0.00047}`

Jul 8, 2025 8:15 PM Description updated View changes

Type	Values Removed	Values Added
Description	Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - AbuseFilter Extension allows Unauthorized Access.This issue affects Mediawiki - AbuseFilter 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.	Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - AbuseFilter Extension allows Unauthorized Access.This issue affects Mediawiki - AbuseFilter Extension: from 1.43.X before 1.43.2.

Jul 8, 2025 6:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Jul 7, 2025 7:00 PM Description updated. Title updated. Weaknesses updated. Added references View changes

Type	Values Removed	Values Added
Description		Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - AbuseFilter Extension allows Unauthorized Access.This issue affects Mediawiki - AbuseFilter 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.
Title		Unauthorized Disclosure of IP Reputation in AbuseFilter
Weaknesses		CWE-862
References		https://gerrit.wikimedia.org/r/c/mediawiki/extensions/AbuseFilter/+/1166040 https://phabricator.wikimedia.org/T396750