This vulnerability involves improper input sanitization in the WP Social SEO Booster – Knowledge Graph Social Signals SEO plugin for WordPress, leading to stored cross-site scripting (XSS). An attacker with low privileges can inject malicious scripts that are stored and later executed in the context of users viewing the affected pages, potentially impacting confidentiality, integrity, and availability. The issue affects all versions up to 1.2.0. The CVSS 3.1 vector is AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L, reflecting network attack vector, low attack complexity, low privileges required, user interaction needed, scope changed, and low impact on confidentiality, integrity, and availability. No patch or vendor advisory is currently available.

Successful exploitation could allow an attacker to execute arbitrary scripts in the context of users viewing affected pages, potentially leading to data theft, session hijacking, or other malicious actions impacting confidentiality, integrity, and availability. The vulnerability requires low privileges and user interaction, and the scope is changed, meaning the impact extends beyond the vulnerable component. However, no known exploits have been reported in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider restricting plugin usage to trusted users and limiting exposure. Monitor for updates from the vendor or security advisories for a patch or mitigation instructions.