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CVE-2020-26121

nvd nist
Published: Sep 27, 2020Modified: Nov 21, 2024

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

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.

Affected (2)

Mediawiki
1 product
Mediawiki
Fedoraproject
1 product
Fedora
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Mediawiki
Before 1.34.4
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Fedora
Version 33

Related CWEs

CWE-863
Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (8)

Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
PatchVendor Advisory
Source: cve@mitre.org
Source: cve@mitre.org
Issue TrackingPatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatchVendor Advisory

Timeline

No history available yet.