CVE-2021-43155: Projectworlds Online Book Store Project In PHP

Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days.

Projectsworlds Online Book Store PHP v1.0 is vulnerable to SQL injection via the "bookisbn" parameter in cart.php.

Affected products

• Projectworlds Online Book Store Project In PHP: version 1.0 only

Published 2021-12-22. Last modified 2026-06-17.