Auth bypass in MediaWiki
CVE-2020-35625
An issue was discovered in the Widgets extension for MediaWiki through 1.35.1. Any user with the ability to edit pages within the Widgets namespace could call any static function within any class (defined within PHP or MediaWiki) via a crafted HTML comment, related to a Smarty template. For example, a person in the Widget Editors group could use \MediaWiki\Shell\Shell::command within a comment.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (62.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000
Affected products
Weakness classification (CWE)
References
- phabricator.wikimedia.org/T269718 (Third Party Advisory)
- gerrit.wikimedia.org/r/q/Ic899a8b15bc510e61cdacb5c024af2d226a2dbeb (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-35625?
- CVE-2020-35625 is a high-severity vulnerability in MediaWiki, classified under Missing Authorization. CVSS score: 8.8/10. Published 2020-12-21.
- How severe is CVE-2020-35625?
- High severity. CVSS v3 base score is 8.8 out of 10.