CVE-2020-26121

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Source
https://nvd.nist.gov/vuln/detail/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
2020-09-27T21:15:13Z
Modified
2025-01-14T08:47:16.276773Z
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.

References

Affected packages

Git / github.com/wikimedia/mediawiki

Affected ranges

Type
GIT
Repo
https://github.com/wikimedia/mediawiki
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e34e7f20b51ed7514ba6de8d8a390363ade2237f

Affected versions

1.*

1.1.0
1.3.0beta1
1.34.0
1.34.0-rc.0
1.34.0-rc.1
1.34.1
1.34.2
1.34.3
1.5.0alpha1
1.5.0alpha2
1.5.0beta1
1.5.0beta2
1.5.0beta3
1.5.0beta4
1.6.0