What’s Vulnerable › Vulnerabilities

CVE-2021-36132

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-07-02 · updated 2026-06-17
• Weakness: CWE-863

Description

An issue was discovered in the FileImporter extension in MediaWiki through 1.36. For certain relaxed configurations of the $wgFileImporterRequiredRight variable, it might not validate all appropriate user rights, thus allowing a user with insufficient rights to perform operations (specifically file uploads) that they should not be allowed to perform.

Affected products

• Wikimedia Foundation MediaWiki: through 1.36

References

• https://gerrit.wikimedia.org/r/q/I8ff2a67abd2c118a3469e4410eac2a451bfa76c3
• https://phabricator.wikimedia.org/T280590
• https://gerrit.wikimedia.org/r/q/I8ff2a67abd2c118a3469e4410eac2a451bfa76c3
• https://phabricator.wikimedia.org/T280590

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