CVE-2026-75860
Received Received - Intake

Unauthenticated Option Update in JSON Options WordPress Plugin

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: WPScan

Description
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.

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Meta Information

Published
2026-08-20
Last Modified
2026-08-20
Generated
2026-08-20
AI Q&A
2026-08-20
EPSS Evaluated
N/A
NVD
CVE-2026-75860
EUVD
EUVD-2026-63207

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
json_options json_options to 0.0.4 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

The JSON Options WordPress plugin through version 0.0.4 lacks capability checks and nonce verification on an action that runs on every request. This flaw allows unauthenticated users to update arbitrary WordPress options, enabling them to enable user registration and set the default role to administrator.

Detection Guidance

Check if the JSON Options plugin version 0.0.4 or below is installed. Look for unauthorized changes to WordPress options or enabled user registration with admin privileges. Review server logs for suspicious requests targeting the vulnerable plugin endpoint.

Impact Analysis

This vulnerability can lead to full site takeover and privilege escalation. An attacker could gain administrator access, allowing them to control the entire WordPress site, modify content, install malicious plugins, or steal sensitive data.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR and HIPAA by allowing unauthorized access to sensitive data. A site takeover could result in data breaches, unauthorized data processing, or failure to protect personal health information, leading to legal penalties.

Mitigation Strategies

Immediately uninstall or disable the JSON Options plugin. Update to the latest version if a patch becomes available. Restrict WordPress user registration and review all user roles for unauthorized changes. Monitor for signs of compromise.

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