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Findings

CVE-2026-3643

The Accessibly plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the REST API in all versions up to, and including, 3.0.3.

Published Apr 15, 2026 · updated Jun 17, 2026

The Accessibly plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the REST API in all versions up to, and including, 3.0.3. The plugin registers REST API endpoints at and with the set to , which means no authentication or authorization check is performed. The function in accepts user-supplied JSON data and passes it directly to , which saves it to the WordPress options table via without any sanitization or validation. The stored value is later retrieved by and passed directly to as the script URL, causing it to be rendered as a tag on every front-end page. This makes it possible for unauthenticated attackers to inject arbitrary JavaScript that executes for all site visitors by changing the option to point to a malicious external script.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 15, 2026 · NIST NVD

    Detected

    The Accessibly plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the REST API in all versions up to, and including, 3.0.3. The plugin registers REST API endpoints at and with the set to , which means no authentication or authorization check is performed. The function in accepts user-supplied JSON data and passes it directly to , which saves it to the WordPress options table via

  2. Jun 17, 2026 · NIST NVD

    Updated

    The Accessibly plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the REST API in all versions up to, and including, 3.0.3. The plugin registers REST API endpoints at and with the set to , which means no authentication or authorization check is performed. The function in accepts user-supplied JSON data and passes it directly to , which saves it to the WordPress options table via

Sources

  • CVE.orgVulnerability recordCVE-2026-3643

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-3643

    The Accessibly plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the REST API in all versions up to, and including, 3.0.3. The plugin registers REST API endpoints at and with the `permission_cal

    nvd.nist.gov

References