All Bootstrap Blocks WordPress Plugin Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the All Bootstrap Blocks plugin for WordPress, affecting all versions through 1.3.26. The issue arises in the 'Accordion' widget, where inadequate input sanitization and output escaping allow authenticated attackers with Contributor-level access or higher to inject arbitrary web scripts. These scripts are executed 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 are advised to update the All Bootstrap Blocks plugin to version 1.3.27 or a newer patched version.