Dear Flipbook WordPress Plugin Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the Dear Flipbook WordPress plugin, specifically in versions through 2.4.20. This issue arises from inadequate input sanitization and output escaping, allowing authenticated attackers with Author-level access or higher to inject arbitrary web scripts into PDF pages. The injected scripts execute when a user accesses the affected page.

Impact

Exploitation of this vulnerability allows for stored cross-site scripting, where injected scripts are executed in the context of the user viewing the page.

Remediation

Users can update to version 2.4.27 or a newer patched version to address this vulnerability.