What is CVE-2025-13950?

CVE-2025-13950 is a medium-severity vulnerability in Onesignal – Web Push Notifications, classified under Missing Authorization. CVSS score: 5.3/10. Published 2025-12-15.

How severe is CVE-2025-13950?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Onesignal – Web Push Notifications

CVE-2025-13950

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.

Vulnerability class: Broken Access Control

EPSS: 0.003 (22.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Onesignal – Web Push Notifications — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

Frequently asked questions

What is CVE-2025-13950?: CVE-2025-13950 is a medium-severity vulnerability in Onesignal – Web Push Notifications, classified under Missing Authorization. CVSS score: 5.3/10. Published 2025-12-15.
How severe is CVE-2025-13950?: Medium severity. CVSS v3 base score is 5.3 out of 10.