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Type a plugin or theme and the version you run, and we’ll show every known vulnerability that affects it, from the 391,181 records in our vulnerability database. The version is listed under Plugins in your WordPress dashboard.
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Plugin · onesignal-free-web-push-notifications
OneSignal – Web Push Notifications
3 known vulnerabilities on record. Add your version above to see which ones affect you.
Apr 16, 2026OneSignal – Web Push Notifications: Authorization bypassCVE-2026-3155 · affects up to 3.8.0 · reported by WordfenceLow 3.1
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.
Dec 15, 2025OneSignal – Web Push Notifications: Unauthorized modification of dataCVE-2025-13950 · affects up to 3.6.1 · reported by WordfenceMedium 5.3
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 user capabilities or nonces. This makes it possible for unauthenticated attackers to overwrite the OneSignal App ID, REST API key, and notification behavior via direct POST requests.
Aug 30, 2019The onesignal-free-web-push-notifications plugin before 1.17.8 for WordPress has XSS via the subdomain parameter.CVE-2019-15827 · fixed in 1.17.8 · reported by MITREMedium 5.4
The onesignal-free-web-push-notifications plugin before 1.17.8 for WordPress has XSS via the subdomain parameter.
Versions are matched against the affected ranges published with each record. A plugin can ship a fix under its own numbering, so if something looks off, check the linked record. Want the whole site checked at once? Run the free website check.
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