Free Quotation WordPress Plugin Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the Free Quotation plugin for WordPress, affecting all versions through 3.1.6. The issue arises from inadequate input sanitization and output escaping, allowing authenticated attackers with administrator-level permissions to inject arbitrary scripts. These scripts are executed when a user accesses the affected page. This vulnerability is present in multi-site installations where unfiltered_html has been disabled.

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

There is no known patch available for this vulnerability. Users are advised to review the vulnerability details and consider uninstalling the affected plugin.