CVE-2020-35480 in MediaWiki

Summary

by MITRE • 12/18/2020

An issue was discovered in MediaWiki before 1.35.1. Missing users (accounts that don't exist) and hidden users (accounts that have been explicitly hidden due to being abusive, or similar) that the viewer cannot see are handled differently, exposing sensitive information about the hidden status to unprivileged viewers. This exists on various code paths.

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• Disclosure: 12/18/2020
• Moderation: accepted
• Entry: VDB-166582
• CPE: ready
• CWE: CWE-200 (confirmed)
• CVSS: 5.3 (VulDB)
• EPSS: 0.01516
• KEV: no
• Activities: very low
• Sector: Lawfirm, Agriculture, ...

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2020-35480
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-35480
• CVE Details: https://www.cvedetails.com/cve/CVE-2020-35480/