# CVE-2026-4117

> Vulnerability · severity: **MEDIUM** (CVSS 5.3).

## Description

The CalJ plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.5. This is due to a missing capability check in the CalJSettingsPage class constructor, which processes the 'save-obtained-key' operation directly from POST data without verifying that the requesting user has the 'manage_options' capability, and without any nonce verification. The plugin bootstrap file (calj.php) instantiates CalJSettingsPage whenever is_admin() returns true, which is the case for any authenticated user making requests to wp-admin URLs (including admin-ajax.php). This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the plugin's API key setting and clear the Shabbat cache, effectively taking control of the plugin's API integration.

## Key facts

- **CVE ID:** CVE-2026-4117
- **Published:** 2026-04-22
- **CVSS severity:** MEDIUM
- **CVSS base score:** 5.3
- **CWE codes:** CWE-862

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-4117

## Citation

> AI Analytics. CVE-2026-4117. Retrieved 2026-07-19 from https://api.ai-analytics.org/cve/CVE-2026-4117. Derived from NIST NVD. Licensed CC0.

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