CVE-2026-58027: CWE-200 Exposure of Sensitive Information to an Unauthorized Actor in Wikimedia Foundation AbuseFilter
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.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-58027) in Wikimedia Foundation's AbuseFilter involves exposure of sensitive information to unauthorized actors, classified under CWE-200. It affects AbuseFilter versions prior to 1.46.0, specifically including 1.45.4, 1.44.6, and 1.43.9. The issue is associated with the program file includes/Api/QueryAbuseFilters.Php. The CVSS 4.0 base score is 5.3, indicating a medium severity with network attack vector, low complexity, no privileges required, and no user interaction needed. No official remediation or patch information is currently available.
Potential Impact
The vulnerability allows unauthorized actors to access sensitive information within the AbuseFilter component of Wikimedia Foundation software. This exposure could potentially lead to information disclosure risks, but no further impact details or known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, users should monitor the Wikimedia Foundation's advisories for updates and consider restricting access to the affected component where possible until a fix is available.
CVE-2026-58027: CWE-200 Exposure of Sensitive Information to an Unauthorized Actor in Wikimedia Foundation AbuseFilter
Description
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.
CVSS v4.0
Score 5.3medium
Affected software
pkg:github/wikimedia/abusefilterRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-58027) in Wikimedia Foundation's AbuseFilter involves exposure of sensitive information to unauthorized actors, classified under CWE-200. It affects AbuseFilter versions prior to 1.46.0, specifically including 1.45.4, 1.44.6, and 1.43.9. The issue is associated with the program file includes/Api/QueryAbuseFilters.Php. The CVSS 4.0 base score is 5.3, indicating a medium severity with network attack vector, low complexity, no privileges required, and no user interaction needed. No official remediation or patch information is currently available.
Potential Impact
The vulnerability allows unauthorized actors to access sensitive information within the AbuseFilter component of Wikimedia Foundation software. This exposure could potentially lead to information disclosure risks, but no further impact details or known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, users should monitor the Wikimedia Foundation's advisories for updates and consider restricting access to the affected component where possible until a fix is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- wikimedia-foundation
- Date Reserved
- 2026-06-27T13:32:37.577Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a45341727e9c79719b99902
Added to database: 07/01/2026, 15:36:55 UTC
Last enriched: 07/10/2026, 09:48:04 UTC
Last updated: 08/16/2026, 00:41:14 UTC
Views: 38
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