tagDiv Composer XSS Vulnerabilities

Stored cross-site scripting (XSS) in tagDiv Composer WordPress plugin versions up to 5.4.3 allows authenticated attackers with low privileges to inject malicious scripts that execute in the context of other users' browsers. The vulnerability requires user interaction (UI:R) and affects confidentiality, integrity, and availability with limited scope. EPSS exploitation probability is very low at 0.03% (8th percentile), and CISA SSVC assessment indicates no known exploitation, non-automatable attacks, and partial technical impact, suggesting this is a lower-priority vulnerability despite the CVSS 6.5 rating.

Improper neutralization of HTML script tags in tagDiv Composer plugin versions up to 5.4.3 allows unauthenticated remote attackers to inject arbitrary code through shortcode execution, resulting in stored cross-site scripting (XSS). The vulnerability exploits insufficient input sanitization in the plugin's composer functionality, enabling attackers to inject malicious scripts that execute in the context of affected web pages. While EPSS scoring indicates low real-world exploitation probability (0.03%, 8th percentile), the CISA SSVC framework notes the attack is automatable and results in partial technical impact; no public exploit code or active exploitation has been identified at time of analysis.