CVE-2026-3155
Received Received - Intake
Authorization Bypass in OneSignal WordPress Plugin Allows Metadata Deletion

Publication date: 2026-04-16

Last updated on: 2026-04-16

Assigner: Wordfence

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.
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Meta Information
Published
2026-04-16
Last Modified
2026-04-16
Generated
2026-06-16
AI Q&A
2026-04-16
EPSS Evaluated
2026-06-14
NVD
CVE-2026-3155
EUVD
EUVD-2026-23219
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
onesignal web_push_notifications to 3.8.0 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
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Executive Summary

The vulnerability exists in the OneSignal – Web Push Notifications plugin for WordPress, specifically in versions up to and including 3.8.0. It is an authorization bypass issue caused by the plugin failing to properly verify whether a user is authorized to perform certain actions.

As a result, authenticated users who have subscriber-level access or higher can exploit this flaw to delete OneSignal metadata associated with arbitrary posts.

Impact Analysis

This vulnerability allows attackers with subscriber-level access or above to delete metadata related to OneSignal notifications for any post. While it does not allow full control or data disclosure, it can disrupt the functionality of web push notifications by removing important metadata.

The impact is limited to integrity (modification/deletion) of notification metadata, with no direct impact on confidentiality or availability.

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