CVE-2025-32700Network attack vector

Private filter disclosure via missing central database fallback

Published Apr 10, 2025 · Updated Apr 10, 2025

Information disclosure in Wikimedia Foundation MediaWiki 1.43.0 allows remote attackers to view private global AbuseFilter log data. Log interfaces treat an unavailable central database as proof that global filters are not hidden, bypassing visibility checks in the API, pager, log page, and examine view. Exposure requires a global private or hidden filter and loss or absence of the central database, and reveals its protected filter and log information.

CVSS severity2.3
Low
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Wikimedia Foundation MediaWiki 1.43.0 allows remote attackers to view private global AbuseFilter log data. Log interfaces treat an unavailable central database as proof that global filters are not hidden, bypassing visibility checks in the API, pager, log page, and examine view. Exposure requires a global private or hidden filter and loss or absence of the central database, and reveals its protected filter and log information.

The record

CVE
CVE-2025-32700
Published
Apr 10, 2025
Updated
Apr 10, 2025
Vendor
Wikimedia Foundation
Product
MediaWiki
Classifications
CWE-200, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 1.43.0 <1.43.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Wikimedia Foundation · MediaWikiversion=>= 1.43.0 <1.43.1

Published CVSS scores

2.3Wikimedia FoundationCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/RE:M/U:Green

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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