CVE-2020-26121
First published: Sun Sep 27 2020(Updated: )
An 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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| MediaWiki MediaWiki | <1.34.4 | |
| Fedoraproject Fedora | =33 |
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Reference Links
- https://commons.wikimedia.org/w/index.php?oldid=454609892#File:Wiki.png
- https://gerrit.wikimedia.org/r/q/Ib852a96afc4dca10516d0510e69c10f9892b351b
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/
- https://phabricator.wikimedia.org/T262628
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/
- agent/references
- agent/type
- agent/remedy
- agent/first-publish-date
- agent/last-modified-date
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/weakness
- agent/severity
- agent/author
- agent/softwarecombine
- agent/tags
- agent/description
- agent/event
- collector/mitre-cve
- source/MITRE
- vendor/mediawiki
- canonical/mediawiki mediawiki
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/33