CVE-2025-6927: Autoblocks from global account suppressions are publicly visible

Published Feb 2, 2026
·
Updated

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/specials/pagers/BlockListPager.Php, includes/api/ApiQueryBlocks.Php.

This issue affects MediaWiki: from >= 1.42.0 before 1.39.13, 1.42.7 1.43.2, 1.44.0.

Affected Software

1 affected component
Wikimedia Foundation MediaWiki>=1.39.13<1.42.0, <1.42.7, <1.43.2, <1.44.0

Event History

Feb 2, 2026
CVE Published
via MITRE·10:55 PM
Data Sourced
via MITRE·10:55 PM
Description
Data Sourced
via NVD·11:16 PM
DescriptionSeverityWeakness

Frequently Asked Questions

1

What is the severity of CVE-2025-6927?

CVE-2025-6927 has been classified as a medium-severity vulnerability due to the exposure of sensitive block information.

2

How does CVE-2025-6927 affect Wikimedia Foundation MediaWiki?

CVE-2025-6927 allows publicly visible autoblocks from global account suppressions in specified MediaWiki versions.

3

How do I fix CVE-2025-6927?

To mitigate CVE-2025-6927, upgrade MediaWiki to version 1.44.0 or later.

4

Which versions of MediaWiki are affected by CVE-2025-6927?

CVE-2025-6927 affects MediaWiki versions from 1.39.13 up to, but not including, 1.42.0 and several versions before 1.44.0.

5

What files are involved in CVE-2025-6927?

CVE-2025-6927 is associated with the program files includes/specials/pagers/BlockListPager.php and includes/api/ApiQueryBlocks.php.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203