Subscribe to Comments

Subscribe to Comments has 7 disclosed vulnerabilities in the WordSec catalog, reported between 2006 and 2026; 6 are fixed and 1 remains unpatched as of October 2026. Their average CVSS score is 5.8, and the most serious one scores 7.2 out of 10. Severity breakdown: 0 critical and 1 high. 2026 was the busiest year with 4 disclosures.

The most common weakness is Cross-Site Scripting, behind 4 of the records (57%). Other recurring categories include Exposure Of Sensitive Information To An Unauthorized Actor, Improper Input Validation.

6 of the records (86%) have a vendor fix, while 1 remain unpatched. The oldest unresolved one dates back to 2026.

4 independent researchers contributed these findings, most of them (3) reported by Het Kalariya. Subscribe to Comments is installed on roughly 10,000 WordPress sites, so each unpatched flaw has a wide blast radius. The current release is tested up to WordPress 7.1.3.