What’s Vulnerable › Vulnerabilities

CVE-2019-16529

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-03-19 · updated 2026-06-17

Description

An issue was discovered in the CheckUser extension through 1.35.0 for MediaWiki. Oversighted edit summaries are still visible in CheckUser results in violation of MediaWiki's permissions model.

Affected products

• Wikimedia Foundation CheckUser: through 1.35

References

• https://phabricator.wikimedia.org/T207094
• https://phabricator.wikimedia.org/rECHU22ddd638ba79903361df88c755232a532cbdbfb3
• https://phabricator.wikimedia.org/T207094
• https://phabricator.wikimedia.org/rECHU22ddd638ba79903361df88c755232a532cbdbfb3

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