Known Vulnerabilities for Checkuser by Mediawiki

Listed below are 8 of the newest known vulnerabilities associated with "Checkuser" by "Mediawiki".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-58034 json Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Founda... Not Provided 2026-07-01 2026-07-01
CVE-2026-54419 json claudiopizzillo PIAF-HMS (PBX-In-A-Flash Hotel Management System; no released versions, latest commit 389d2633441b65ced1c1042... Not Provided 2026-06-18 2026-06-18
CVE-2026-34090 json Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation CheckUser. This issue affec... Not Provided 2026-05-11 2026-05-11
CVE-2026-11488 json A vulnerability has been found in code-projects Simple Flight Ticket Booking System 1.0. This affects an unknown part of the ... Not Provided 2026-06-08 2026-06-08
CVE-2025-67478 json Not Provided 2026-02-03 2026-04-14
CVE-2025-61658 json Not Provided 2026-02-03 2026-04-14
CVE-2025-61651 json Not Provided 2026-02-03 2026-04-09
CVE-2025-61648 json Not Provided 2026-02-03 2026-04-09
CVE-2019-18611 json An issue was discovered in the CheckUser extension through 1.34 for MediaWiki. Certain sensitive information within oversight... 6.5 - MEDIUM 2019-10-29 2019-10-31
CVE-2019-16529 json An issue was discovered in the CheckUser extension through 1.35.0 for MediaWiki. Oversighted edit summaries are still visible... 5.3 - MEDIUM 2020-03-19 2020-03-24
Results limited to 10 most recent vulnerabilities

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationMediawikiCheckuser2.3
ApplicationMediawikiCheckuser1.35
ApplicationMediawikiCheckuser1.34
ApplicationMediawikiCheckuser1.33
ApplicationMediawikiCheckuser1.32
ApplicationMediawikiCheckuser1.31
ApplicationMediawikiCheckuser1.30
ApplicationMediawikiCheckuser1.29
ApplicationMediawikiCheckuser1.28
ApplicationMediawikiCheckuser1.27
ApplicationMediawikiCheckuser1.26
ApplicationMediawikiCheckuser1.25
ApplicationMediawikiCheckuser1.24
ApplicationMediawikiCheckuser1.23
ApplicationMediawikiCheckuser1.22
ApplicationMediawikiCheckuser1.21
ApplicationMediawikiCheckuser1.20
ApplicationMediawikiCheckuser1.19
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