Subscribe to Comments

Subscribe to Comments has 4 disclosed vulnerabilities in the WordSec catalog, reported between 2006 and 2026; 3 are fixed and 1 remains unpatched as of September 2026. Their average CVSS score is 6.2, and the most serious one scores 7.2 out of 10. Severity breakdown: 0 critical and 1 high.

The most common weakness is Cross-Site Scripting, behind 3 of the records (75%). Other recurring categories include PHP Remote File Inclusion.

3 of the records (75%) have a vendor fix, while 1 remain unpatched. The oldest unresolved one dates back to 2026.

3 independent researchers contributed these findings, one record each. 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 4.3.34.