CVE-2025-28970: Pep.vn Wp Optimize By Xtraffic

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Deserialization of Untrusted Data vulnerability in pep.vn WP Optimize By xTraffic wp-optimize-by-xtraffic allows Object Injection.This issue affects WP Optimize By xTraffic: from n/a through <= 5.1.6.

Affected products

• Pep.vn Wp Optimize By Xtraffic: up to and including 5.1.6

Published 2025-06-27. Last modified 2026-06-17.