How severe is CVE-2021-42043?

This vulnerability has a severity rating of MEDIUM with a CVSS score of 6.1 out of 10.

What type of vulnerability is CVE-2021-42043?

This is classified as CWE-79, which is a common weakness in software security.

CVE-2021-42043 - MEDIUM Severity | CVSS 6.1

Vulnerability Description

An issue was discovered in Special:MediaSearch in the MediaSearch extension in MediaWiki through 1.36.2. The suggestion text (a parameter to mediasearch-did-you-mean) was not being properly sanitized and allowed for the injection and execution of HTML and JavaScript via the intitle: search operator within the query.

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