CVE-2025-53580: Quantumcloud Simple Business Directory Pro

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Incorrect Privilege Assignment vulnerability in quantumcloud Simple Business Directory Pro simple-business-directory-pro allows Privilege Escalation.This issue affects Simple Business Directory Pro: from n/a through < 15.6.9.

Affected products

• Quantumcloud Simple Business Directory Pro: up to and including 15.6.9

Published 2025-08-20. Last modified 2026-06-17.