CVE-2021-31555

—

CVSS 3.1

7.5 high

EPSS

<1%p54

Published

Apr 22, 2021 (Apr 22, 2021)

Modified

Jun 17, 2026

Description

An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. It did not validate the oarc_version (aka oauth_registered_consumer.oarc_version) parameter's length.

Vendors: mediawiki
Products: mediawiki
Weakness: CWE-20
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.8%)

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