Unknown Subscribe To Comments vulnerabilities

2 vulnerabilities

Known vulnerabilities in Unknown Subscribe To Comments, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

3.8CVE-2026-91831unknownsubscribe to comments
EPSS score
0.16%
The Subscribe to Comments WordPress plugin before 2.3.3 does not sanitise newline characters from a notification sender-name setting before using it in e-mail headers, allowing users with Author-level access and above to inject arbitrary e-mail headers, such as a hidden Bcc, and to spoof the sender.6.5CVE-2026-91830unknownsubscribe to comments
EPSS score
0.18%
The Subscribe to Comments WordPress plugin before 2.3.3 does not sign or validate a cookie it trusts to identify a commenter, allowing unauthenticated attackers to disclose a subscriber's management key and silently alter that subscriber's subscriptions.7.1CVE-2026-91829unknownsubscribe to comments+1
EPSS score
0.16%
The Subscribe to Comments WordPress plugin before 2.3.3 does not properly validate a parameter before reflecting it into a link target, allowing unauthenticated attackers to perform Reflected Cross-Site Scripting via a crafted URL against anyone who clicks it, including administrators.