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Vulnerabilities and Security Researches

OneSignal – Web Push Notifications, CVE-2026-3155

CVE, Research URL

CVE-2026-3155

Published on
Apr 16, 2026
Research Description
The OneSignal – Web Push Notifications plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 3.8.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete OneSignal metadata for arbitrary posts.
Affected versions
max 3.8.1.
Status
vulnerable