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OneSignal – Web Push Notifications

onesignal-free-web-push-notifications
total installs
70,000
total vulns
2
critical
0
high
0
medium
1
low
1
latest vuln
—
patched
2
unpatched
0
avg time to patch
—
vulnerabilities (2)
OneSignal – Web Push Notifications <= 3.8.0 - Missing Authorization to Authenticated (Subscriber+) Post Meta Deletion via 'post_id'
low ✓ patched
cve id CVE-2026-3155 ↗
cvss score 3.1
cwe CWE-862: Missing Authorization
published Apr 15, 2026
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.
OneSignal – Web Push Notifications <= 3.6.1 - Missing Authorization to Unauthenticated Plugin Settings Update
medium ✓ patched
cve id CVE-2025-13950 ↗
cvss score 5.3
cwe CWE-862: Missing Authorization
published Dec 15, 2025
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.