CVE-2026-1854 Post Flagger <= 1.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'slug' Shortcode Attribute

The Post Flagger plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'flag' shortcode in all versions up to, and including, 1.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers...

CVE-2026-1854

CVE-2026-1854 concerns the WordPress Post Flagger plugin. A stored XSS vulnerability exists via the plugin’s 'flag' shortcode attribute in all versions up to and including 1.1 due to insufficient input sanitization and output escaping. The issue can be chained by an authenticated attacker with co...

PT-2026-26819

The Post Flagger plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'flag' shortcode in all versions up to, and including, 1.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers...