phpBB: Blind POST SSRF via Web Push Notification Endpoint

A vulnerability was discovered in phpBB 4.0.0-alpha1 that allowed registered users to register arbitrary URLs as their Web Push notification endpoint. The endpoint URL was stored without validation and later used by the phpBB server to send outbound HTTP POST requests, potentially leading to blin...

Quiz sites trick users into enabling unwanted browser notifications

Our support team flagged a number of customers who suspected their device might be infected with malware, but Malwarebytes scans came up empty. When the customers provided screenshots, our Malware Removal Support team quickly recognized the format as web push notifications. The reason the scans...

CVE-2025-14799: Access of Resource Using Incompatible Type

The Brevo - Email, SMS, Web Push, Chat, and more. plugin for WordPress is vulnerable to authorization bypass due to type juggling in all versions up to, and including, 3.3.0. This is due to the use of loose comparison == instead of strict comparison === when validating the installation ID in the...

CVE-2026-23964

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.5, 4.4.12, and 4.3.18, an insecure direct object reference in the web push subscription update endpoint lets any authenticated user update another user's push subscription by guessing or obtaining th...

CVE-2026-24536: Exposure of Sensitive System Information to an Unauthorized Control Sphere

Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in webpushr Webpushr webpushr-web-push-notifications allows Retrieve Embedded Sensitive Data.This issue affects Webpushr: from n/a through = 4.38.0...

PT-2026-4384

Name of the Vulnerable Software and Affected Versions webpushr versions through 4.38.0 Description A flaw exists in webpushr webpushr-web-push-notifications that could allow retrieval of embedded sensitive data. This issue relates to the exposure of sensitive system information to an unauthorized...

CVE-2026-23964

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.5, 4.4.12, and 4.3.18, an insecure direct object reference in the web push subscription update endpoint lets any authenticated user update another user's push subscription by guessing or obtaining th...

EUVD-2026-4210

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.5, 4.4.12, and 4.3.18, an insecure direct object reference in the web push subscription update endpoint lets any authenticated user update another user's push subscription by guessing or obtaining th...

CVE-2026-23964

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.5, 4.4.12, and 4.3.18, an insecure direct object reference in the web push subscription update endpoint lets any authenticated user update another user's push subscription by guessing or obtaining th...

CVE-2026-23964 Mastodon has insufficient access control to push notification settings

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.5, 4.4.12, and 4.3.18, an insecure direct object reference in the web push subscription update endpoint lets any authenticated user update another user's push subscription by guessing or obtaining th...

CVE-2026-23964

Mastodon vendor: Mastodon server (ActivityPub). Vulnerability CVE-2026-23964 is an insecure direct object reference in the web push subscription update endpoint affecting versions < 4.5.5, < 4.4.12, and

CVE-2026-23964: Incorrect Authorization

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.5, 4.4.12, and 4.3.18, an insecure direct object reference in the web push subscription update endpoint lets any authenticated user update another user's push subscription by guessing or obtaining th...

Mastodon security vulnerabilities

Mastodon is an open-source social networking server based on ActivityPub. Versions of Mastodon prior to v4.5.5, v4.4.12, and v4.3.18 contained security vulnerabilities. These vulnerabilities stemmed from insecure direct object references in the web push subscription update endpoint, which could...

CVE-2023-45274

Cross-Site Request Forgery CSRF vulnerability in SendPulse SendPulse Free Web Push plugin = 1.3.1 versions...

CVE-2024-34369

Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' vulnerability in Webpushr Web Push Notifications Webpushr allows Reflected XSS.This issue affects Webpushr: from n/a through 4.35.0...

WordPress Feedify - Web Push Notifications plugin < 2.4.6 - Reflected XSS vulnerability

WordPress Feedify - Web Push Notifications plugin 2.4.6 - Reflected XSS vulnerability discovered by Hassan Khan Yusufzai - Splint3r7 in WordPress Plugin Feedify – Web Push Notifications versions 2.4.6...

WordPress plugin OneSignal – Web Push Notifications 安全漏洞

WordPress and WordPress plugin are both products of the WordPress Foundation.WordPress is a blogging platform developed using the PHP language. The platform has the ability to host personal blog sites on PHP and MySQL based servers.WordPress plugin is an application plug-in. A security...

CVE-2025-13950: Missing Authorization

The OneSignal – Web Push Notifications plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the settings handling functionality in all versions up to, and including, 3.6.1. This is due to the plugin processing POST requests without verifying...

CVE-2025-62869

Missing Authorization vulnerability in Gravitec.net - Web Push Notifications Gravitec.net - Web Push Notifications gravitec-net-web-push-notifications allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Gravitec.net - Web Push Notifications: from n/a through...

EUVD-2025-202015

Missing Authorization vulnerability in Gravitec.net - Web Push Notifications Gravitec.net Web Push Notifications gravitec-net-web-push-notifications allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Gravitec.net Web Push Notifications: from n/a through =...