WordPress plugin
OneSignal – Web Push Notifications security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 3 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.
- Critical0
- High0
- Medium2
- Low1
All OneSignal – Web Push Notifications vulnerabilities
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OneSignal – Web Push Notifications: common questions
Does OneSignal – Web Push Notifications have known vulnerabilities?
Yes. VulnCrest Radar lists 3 known vulnerabilities in OneSignal – Web Push Notifications: 2 medium, 1 low. None are known to affect version null.
How do I check which version of OneSignal – Web Push Notifications I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent OneSignal – Web Push Notifications vulnerability?
CVE-2026-3155, published Apr 15, 2026: OneSignal – Web Push Notifications <= 3.8.0 - Missing Authorization to Authenticated (Subscriber+) Post Meta Deletion via 'post_id'. Severity: Low (CVSS 3.1).
Is any OneSignal – Web Push Notifications vulnerability listed in CISA KEV?
No. None of the known OneSignal – Web Push Notifications vulnerabilities is currently listed in the CISA KEV catalog.