Kona Gallery Block Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the Kona Gallery Block plugin for WordPress, specifically in the 'Kona: Instagram for Gutenberg' Block. The issue resides within the 'align' attribute and affects all versions through 1.7. The vulnerability arises from inadequate input sanitization and output escaping, allowing authenticated attackers with Contributor-level access and above to inject arbitrary web scripts into pages. These scripts would execute when a user accesses the compromised 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

No known patch is available. Users are advised to review the vulnerability details and consider uninstalling the affected plugin.