CVE-2020-26121: 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…

PriorityP339high7.5CVSS 3.1

AVNACLPRNUINSUCNIHAN

EPSS

1.28%

67.1th percentile

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 ranges

Vendor	Product	Version range	Fixed in
fedoraproject	fedora	—	—
mediawiki	mediawiki	< 1.34.4	1.34.4

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N

vendor_redhat7.5HIGH

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