CVE-2026-0555

Name of the Vulnerable Software and Affected Versions Premmerce plugin for WordPress versions up to and including 1.3.20

Description The Premmerce plugin for WordPress is susceptible to Stored Cross-Site Scripting through the premmerce wizard actions API endpoint. The issue stems from a lack of capability checks and inadequate input sanitization and output escaping on the state parameter. This allows authenticated attackers with subscriber-level access or higher to inject malicious web scripts into pages. These scripts will execute when a user accesses the affected page, specifically the Premmerce Wizard admin page.

Recommendations Update the Premmerce plugin to a version later than 1.3.20.