CVE-2020-15179

2020-09-1518:15:14

Google

osv.dev

6.9 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

43.0%

JSON

The ScratchSig extension for MediaWiki before version 1.0.1 allows stored Cross-Site Scripting. Using <script> tag inside <scratchsig> tag, attackers with edit permission can execute scripts on visitors’ browser. With MediaWiki JavaScript API, this can potentially lead to privilege escalation and/or account takeover. This has been patched in release 1.0.1. This has already been deployed to all Scratch Wikis. No workarounds exist other than disabling the extension completely.