CVE-2026-88826

The SmugMug Embed WordPress plugin, in versions up to and including 3.13 , is vulnerable to an unauthenticated stored XSS (Cross-Site Scripting). The flaw exists because an AJAX action used to store gallery data lacks proper authorization and CSRF checks , and the data is not correctly sanitized ...

CVE-2026-88826 SmugMug Embed <= 3.13 - Unauthenticated Stored XSS via saveSelectedAlbums

The SmugMug Embed WordPress plugin through 3.13 does not have authorisation or CSRF checks on an AJAX action that stores gallery data, and does not sanitise or escape that data before outputting it, allowing unauthenticated users to store arbitrary web scripts that execute when an administrator...