OneSignal – Web Push Notifications <= 3.8.0 - Missing Authorization to Authenticated (Subscriber+) Post Meta Deletion via 'post_id'
low
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...
- CVSS:
- 3.1
- Affected:
- up to 3.8.0
- Fixed in:
- 3.8.1
- Disclosed:
- Apr 15, 2026
CVE-2026-3155 on NVD →
OneSignal – Web Push Notifications <= 3.6.1 - Missing Authorization to Unauthenticated Plugin Settings Update
medium
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 n...
- CVSS:
- 5.3
- Affected:
- up to 3.6.1
- Fixed in:
- 3.6.2
- Disclosed:
- Dec 15, 2025
CVE-2025-13950 on NVD →
OneSignal Web Push Notifications <=1.17.7 - Stored Cross-Site Scripting
medium
The onesignal-free-web-push-notifications plugin before 1.17.8 for WordPress has XSS via the subdomain parameter.
- CVSS:
- 6.4
- Affected:
- up to 1.17.7
- Fixed in:
- 1.17.8
- Disclosed:
- Jul 18, 2019
CVE-2019-15827 on NVD →
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