CVE-2020-26121

Summary

CVECVE-2020-26121
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-09-27 21:15:00 UTC
Updated2023-11-07 03:20:00 UTC
DescriptionAn issue was discovered in the FileImporter extension for MediaWiki before 1.34.4. An attacker can import a file even when the target page is protected against "page creation" and the attacker should not be able to create it. This occurs because of a mishandled distinction between an upload restriction and a create restriction. An attacker cannot leverage this to overwrite anything, but can leverage this to force a wiki to have a page with a disallowed title.

Risk And Classification

Problem Types: CWE-863

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 33 All All All
Application Mediawiki Mediawiki All All All All
Application Mediawiki Mediawiki All All All All

References

ReferenceSourceLinkTags
⚓ T262628 FileImporter imports the file even when the target page is protected on Commons and the importer should not be able to create it (CVE-2020-26121) MISC phabricator.wikimedia.org Issue Tracking, Patch, Vendor Advisory
[SECURITY] Fedora 33 Update: php-oojs-oojs-ui-0.39.3-1.fc33 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Commons:Administrators' noticeboard - Wikimedia Commons MISC commons.wikimedia.org Vendor Advisory
gerrit.wikimedia.org/r/q/Ib852a96afc4dca10516d0510e69c10f9892b351b MISC gerrit.wikimedia.org Patch, Vendor Advisory
[SECURITY] Fedora 33 Update: php-oojs-oojs-ui-0.39.3-1.fc33 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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