EUVD-2026-11031

The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 4.11.1. This is due to the plugin trusting the mc4wpaction POST parameter without validation, allowing unauthenticated attackers to force the form to process...

CVE-2026-1781

CVE-2026-1781 affects the MC4WP: Mailchimp for WordPress plugin for WordPress; vulnerable in all versions up to 4.11.1 due to missing authorization in the form handling, where the plugin trusts the publicly exposed _mc4wp_action POST parameter. This allows unauthenticated attackers to force unsub...

CVE-2026-1781 MC4WP: Mailchimp for WordPress <= 4.11.1 - Missing Authorization to Unauthenticated Arbitrary Subscription Deletion

The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 4.11.1. This is due to the plugin trusting the mc4wpaction POST parameter without validation, allowing unauthenticated attackers to force the form to process...

CVE-2026-1781 MC4WP: Mailchimp for WordPress <= 4.11.1 - Missing Authorization to Unauthenticated Arbitrary Subscription Deletion

The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 4.11.1. This is due to the plugin trusting the mc4wpaction POST parameter without validation, allowing unauthenticated attackers to force the form to process...

CVE-2026-1781 MC4WP: Mailchimp for WordPress <= 4.11.1 - Missing Authorization to Unauthenticated Arbitrary Subscription Deletion

The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 4.11.1. This is due to the plugin trusting the mc4wpaction POST parameter without validation, allowing unauthenticated attackers to force the form to process...

PT-2026-24546

The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 4.11.1. This is due to the plugin trusting the mc4wp action POST parameter without validation, allowing unauthenticated attackers to force the form to process...

CVE-2026-28799

PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap use-after-free vulnerability exists in PJSIP's event subscription framework evsub.c that is triggered during presence unsubscription SUBSCRIBE with Expires=0. This issue has been patched i...

CVE-2026-28799

PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap use-after-free vulnerability exists in PJSIP's event subscription framework evsub.c that is triggered during presence unsubscription SUBSCRIBE with Expires=0. This issue has been patched i...

CVE-2026-28799 PJSIP: Heap use-after-free in PJSIP presence subscription termination handler

PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap use-after-free vulnerability exists in PJSIP's event subscription framework evsub.c that is triggered during presence unsubscription SUBSCRIBE with Expires=0. This issue has been patched i...

CVE-2026-22040

NanoMQ MQTT Broker NanoMQ is an all-around Edge Messaging Platform. In version 0.24.6, by generating a combined traffic pattern of high-frequency publishes and rapid reconnect/kick-out using the same ClientID and massive subscribe/unsubscribe jitter, it is possible to reliably trigger heap memory...

EUVD-2026-9497

NanoMQ MQTT Broker NanoMQ is an all-around Edge Messaging Platform. In version 0.24.6, by generating a combined traffic pattern of high-frequency publishes and rapid reconnect/kick-out using the same ClientID and massive subscribe/unsubscribe jitter, it is possible to reliably trigger heap memory...

CVE-2025-13079

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.2. This is due to the plugin generating predictable unsubscribe tokens using deterministic data. This makes it...

CVE-2025-13079

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.2. This is due to the plugin generating predictable unsubscribe tokens using deterministic data. This makes it...

CVE-2025-13079

CVE-2025-13079 concerns the WordPress plugin “Popup Builder” (versions

CVE-2025-13079 Popup Builder - Create highly converting, mobile friendly marketing popups. <= 4.4.2 - Improper Authorization to Unauthenticated Subscriber Removal via Predictable Tokens

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.2. This is due to the plugin generating predictable unsubscribe tokens using deterministic data. This makes it...

CVE-2025-13079 Popup Builder - Create highly converting, mobile friendly marketing popups. <= 4.4.2 - Improper Authorization to Unauthenticated Subscriber Removal via Predictable Tokens

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.2. This is due to the plugin generating predictable unsubscribe tokens using deterministic data. This makes it...

PT-2026-20591

Name of the Vulnerable Software and Affected Versions Popup Builder – Create highly converting, mobile friendly marketing popups. versions prior to 4.4.3 Description The Popup Builder plugin for WordPress is susceptible to authorization bypass. This occurs because the plugin generates predictable...

CVE-2026-1051

The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 9.1.0. This is due to missing or incorrect nonce validation on the hooknewsletteraction function. This makes it possible for unauthenticated...

CVE-2026-1051

The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 9.1.0. This is due to missing or incorrect nonce validation on the hooknewsletteraction function. This makes it possible for unauthenticated...

CVE-2026-1051

CVE-2026-1051 (Newsletter – Send awesome emails from WordPress) is a CSRF vulnerability in all versions up to 9.1.0 caused by missing/incorrect nonce validation in hook_newsletter_action(), enabling unauthenticated attackers to unsubscribe newsletter subscribers via a forged request if they can l...