vulnerability
WordPress Plugin: wordpress-seo: CVE-2021-24153: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 3 | (AV:N/AC:M/Au:S/C:N/I:P/A:N) | Aug 2, 2016 | May 15, 2025 | Apr 30, 2026 |
Severity
3
CVSS
(AV:N/AC:M/Au:S/C:N/I:P/A:N)
Published
Aug 2, 2016
Added
May 15, 2025
Modified
Apr 30, 2026
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 parentheses as well as several functions such as alert, but bypasses were found.
Solution
wordpress-seo-plugin-cve-2021-24153
References
Rapid7 Labs
2026 Global Threat Landscape Report
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