WordPress Weaver Show Posts plugin <= 1.8.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Additional Classes to Wrap Posts' Widget Setting vulnerability

Authenticated Administrator+ Stored Cross-Site Scripting via 'Additional Classes to Wrap Posts' Widget Setting vulnerability discovered by Muqsith Barru - TCC in WordPress Plugin Weaver Show Posts versions = 1.8.1...

CVE-2026-2121

The CVE-2026-2121 issue affects the Weaver Show Posts WordPress plugin (all versions up to 1.8.1). It permits Stored Cross-Site Scripting via the add_class parameter due to insufficient input sanitization and output escaping of user attributes. Authenticated attackers with Administrator-level acc...

CVE-2021-24537

The Similar Posts WordPress plugin through 3.1.5 allow high privilege users to execute arbitrary PHP code in an hardened environment ie with DISALLOWFILEEDIT, DISALLOWFILEMODS and DISALLOWUNFILTEREDHTML set to true via the 'widgetrrmsimilarpostscondition' widget setting of the plugin...

CVE-2021-24537 Similar Posts <= 3.1.5 - Admin+ Arbitrary PHP Code Execution

The Similar Posts WordPress plugin through 3.1.5 allow high privilege users to execute arbitrary PHP code in an hardened environment ie with DISALLOWFILEEDIT, DISALLOWFILEMODS and DISALLOWUNFILTEREDHTML set to true via the 'widgetrrmsimilarpostscondition' widget setting of the plugin...