CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
What the vulnerability does
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.
Explanation of Vulnerability in Simple Terms
OneSignal Web Push Notifications versions 3.8.0 and earlier lack proper authorization checks, allowing authenticated users to modify data they should not have access to. An attacker with low-level credentials can alter push notification settings or configurations through the web interface. The vulnerability requires network access and an existing user account but does not require user interaction to exploit.
What an attacker can do
Modify push notification settings or data belonging to other users or campaigns.
Potential impact on your site
Unauthorized changes to push notification campaigns, messaging, or targeting could disrupt communications or expose configuration details.
Conditions required to exploit
Attacker must have a valid OneSignal user account with low-level privileges.
Key dates
External resources
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