CVE-2026-19856 — All in One SEO < 5.0.2.1 - Unauthenticated Arbitrary Shortcode Execution via Search Query
The All in One SEO WordPress plugin before 5.0.2.1 does not correctly determine which shortcodes are present in content derived from user input before deciding which ones to str…
Published: 2026-10-02 · CVSS: 6.5 · CVSS 3.1
The All in One SEO WordPress plugin before 5.0.2.1 does not correctly determine which shortcodes are present in content derived from user input before deciding which ones to strip, allowing unauthenticated users to execute arbitrary shortcodes registered on the site. On sites upgraded from older versions the protection is disabled outright, making the issue reachable without any crafted input.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7