cleantalk
Vulnerabilities and Security Researches

Security Optimizer – The All-In-One WordPress Protection Plugin, CVE-2025-66121

CVE, Research URL

CVE-2025-66121

Published on
Dec 16, 2025
Research Description
Missing Authorization vulnerability in SiteGround SiteGround Security sg-security allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects SiteGround Security: from n/a through <= 1.5.8.
Affected versions
max 1.5.8.
Status
vulnerable