CVE-2026-1319

The Robin Image Optimizer – Unlimited Image Optimization & WebP Converter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘Alternative Text’ field of a Media Library image in all versions up to, and including, 2.0.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

More information : https://plugins.trac.wordpress.org/changeset/3445467/robin-image-optimizer/tags/2.0.3/libs/addons/includes/classes/webp/vendor/rosell-dk/dom-util-for-webp/src/PictureTags.php