CVE-2026-66614: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in SEO Squirrly SEO Plugin by Squirrly SEO

This vulnerability, identified as CWE-79, involves improper neutralization of input during web page generation in the SEO Plugin by Squirrly SEO. It allows unauthenticated attackers to inject malicious scripts, which can lead to cross-site scripting (XSS) attacks. The CVSS 3.1 base score is 7.1, indicating high severity, with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability. The affected versions are all versions up to and including 14.2.2.

Successful exploitation can lead to execution of arbitrary scripts in the context of the affected web application, potentially resulting in data theft, session hijacking, or other malicious actions impacting confidentiality, integrity, and availability. Since the vulnerability is unauthenticated and remotely exploitable, it poses a significant risk to users of the affected plugin versions.

No explicit patch or remediation information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, consider disabling or restricting access to the vulnerable plugin to mitigate risk.