CVE-2026-9626

The CVE-2026-9626 entry concerns the WordPress JSON API User plugin (

CVE-2026-9626: Improper Neutralization of Input During Web Page Generation

The JSON API User plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content' parameter of the postcomment API endpoint in versions up to, and including, 4.1.0 This is due to insufficient input sanitization in the postcomment function, which passes the attacker-controlled...