CVE-2020-25827

HIGH

MediaWiki < 1.31.10 and 1.32.x-1.34.x < 1.34.4 - Improper Restriction of Excessive Authentication Attempts

Title source: llm

Description

An issue was discovered in the OATHAuth extension in MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4. For Wikis using OATHAuth on a farm/cluster (such as via CentralAuth), rate limiting of OATH tokens is only done on a single site level. Thus, multiple requests can be made across many wikis/sites concurrently.

References (4)

Core 4

Core References

Exploit, Vendor Advisory x_refsource_misc

https://phabricator.wikimedia.org/T251661

Mailing List, Vendor Advisory x_refsource_confirm

https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html

Mailing List, Vendor Advisory x_refsource_misc

https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/

Scores

CVSS v3 7.5

EPSS 0.0024

EPSS Percentile 46.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

CWE

CWE-307

Status published

Products (3)

fedoraproject/fedora 33

mediawiki/core 1.31.0 - 1.31.9Packagist

mediawiki/mediawiki < 1.31.10

Published Sep 27, 2020

Tracked Since Feb 18, 2026