CVE-2026-91831

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 send...

EUVD-2026-104101

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 send...

CVE-2026-91831 Subscribe to Comments 2.3 - 2.3.2 - Author+ Email Header Injection via From Name Setting

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 send...

WordPress Subscribe to Comments plugin < 2.3.3 - Author+ Email Header Injection vulnerability

Author+ Email Header Injection vulnerability discovered by Het Kalariya in WordPress Plugin Subscribe to Comments versions 2.3.3...

CVE-2026-91831

The Subscribe to Comments WordPress plugin versions before 2.3.3 is vulnerable to an Email Header Injection flaw. The application fails to sanitize newline characters in the notification sender-name setting before utilizing them in email headers. This allows users with Author-level access or high...

CVE-2026-91831 Subscribe to Comments 2.3 - 2.3.2 - Author+ Email Header Injection via From Name Setting

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 send...

PT-2026-117251

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 send...

CVE-2026-91831: Improper Neutralization of CRLF Sequences

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 send...

WordPress Subscribe to Comments plugin < 2.3.3 - Unauthenticated Subscription Management Key Disclosure vulnerability

Unauthenticated Subscription Management Key Disclosure vulnerability discovered by Het Kalariya in WordPress Plugin Subscribe to Comments versions 2.3.3...

CVE-2026-91830

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...

CVE-2026-91830 Subscribe to Comments < 2.3.3 - Unauthenticated Subscription Management Key Disclosure via Forged Comment Cookie

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...

CVE-2026-91830

The Subscribe to Comments WordPress plugin, in versions prior to 2.3.3 , is vulnerable to an unauthenticated Subscription Management Key Disclosure . The root cause is that the plugin fails to sign or validate a cookie used to identify a commenter. This allows an unauthenticated attacker to discl...

EUVD-2026-102684

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...

CVE-2026-91830 Subscribe to Comments < 2.3.3 - Unauthenticated Subscription Management Key Disclosure via Forged Comment Cookie

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...

CVE-2026-91830: Exposure of Sensitive Information to an Unauthorized Actor

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...

PT-2026-115480

Name of the Vulnerable Software and Affected Versions Subscribe to Comments WordPress plugin versions prior to 2.3.3 Description The plugin fails to sign or validate a cookie used to identify commenters. This allows unauthenticated attackers to disclose a subscriber's management key and silently...

WordPress Subscribe to Comments plugin < 2.3.3 - Reflected XSS vulnerability

Reflected XSS vulnerability discovered by Het Kalariya in WordPress Plugin Subscribe to Comments versions 2.3.3...

CVE-2026-91829

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...

CVE-2026-91829 Subscribe to Comments < 2.3.3 - Reflected XSS via 'ref' Parameter

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...

CVE-2026-91829

The Subscribe to Comments WordPress plugin (versions before 2.3.3 ) is vulnerable to Reflected Cross-Site Scripting (XSS) . The root cause is a failure to properly validate a parameter—specifically identified in some records as the 'ref' parameter —before reflecting it into a link target. This al...