Privilege escalation in JSON Options
CVE-2026-75860
The JSON Options WordPress plugin through 0.0.4 does not have any capability check or nonce verification on one of its actions, which runs on every request and is available to unauthenticated users, allowing them to update arbitrary WordPress options. This can be leveraged to enable user registration and set the default role to administrator, leading to privilege escalation and full site takeover.
Vulnerability class: Privilege Escalation
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Unknown Json Options
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-75860?
- CVE-2026-75860 is a critical-severity vulnerability in JSON Options, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2026-08-20.
- How severe is CVE-2026-75860?
- Critical severity. CVSS v3 base score is 9.8 out of 10.