Vulnerability · Published Apr 5, 2021 · Assigned by WPScan
CVE-2021-24153Yoast SEO < 3.4.1 - Authenticated Stored Cross-Site Scripting (XSS)
Medium 5.4
In plain English
A medium-severity cross-site scripting in Yoast SEO from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities).
Severity (CVSS NVD)5.4Medium
Exploit odds (30 days)1.1%top 33.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A Stored Cross-Site Scripting vulnerability was discovered in the Yoast SEO WordPress plugin before 3.4.1, which had built-in blacklist filters which were blacklisting Parenthesis as well as several functions such as alert but bypasses were found.
Affected products (as reported)
Weakness: CWE-79
References
- https://wpscan.com/vulnerability/77810044-394d-4314-b9a1-20c7dca726dc x_refsource_CONFIRM
- https://plugins.trac.wordpress.org/changeset/1466243/wordpress-seo x_refsource_MISC
- https://packetstormsecurity.com/files/138192/ x_refsource_MISC