CVE-2020-26121
- Source
- https://cve.org/CVERecord?id=CVE-2020-26121
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26121.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2020-26121
- Aliases
- Published
- 2020-09-27T21:15:13.063Z
- Modified
- 2026-07-08T05:58:44.685994876Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- Database specific
{ "unresolved_ranges": [ { "cpes": [ "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*" ], "vendor_product": "fedoraproject:fedora", "source": "CPE_STRING", "extracted_events": [ { "introduced": "33" }, { "last_affected": "33" } ] } ] }- References
-
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/
- https://commons.wikimedia.org/w/index.php?oldid=454609892#File:Wiki.png
- https://gerrit.wikimedia.org/r/q/Ib852a96afc4dca10516d0510e69c10f9892b351b
- https://phabricator.wikimedia.org/T262628
Affected packages
Git / github.com/wikimedia/mediawiki
Affected ranges
- Type
- GIT
- Repo
- https://github.com/wikimedia/mediawiki
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
-
Show details
{ "cpe": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*", "source": "CPE_RANGE", "extracted_events": [ { "introduced": "0" }, { "fixed": "1.34.4" } ] }