CVE-2026-8623: Improper Neutralization of Input During Web Page Generation

The Dear Flipbook – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'postcontent class attribute of .dvcss element' parameter in all versions up to, and including, 2.4.30 due to insufficient input sanitization and output...