CVE-2026-8844

Περιγραφή

The Responsive Check plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the -rspcheck- shortcode in versions up to, and including, 0.0.3. This is due to insufficient input sanitization and output escaping on the -url- (and -button-) shortcode attributes in the rspc_check_shortcode() function, which are echoed directly into iframe src attributes without esc_attr() or esc_url(). This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.