Medium · 5.3 CVE-2025-66121 EUVD-2025-203588GHSA-j9wm-m2fc-3vmp

WordPress SiteGround Security plugin <= 1.5.8 - Broken Access Control vulnerability

Published Dec 16, 2025 · Updated Apr 28, 2026 · Assigned by Patchstack

Vendor: SiteGround Product: SiteGround Security

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 products

Vendor	Product	Affected	Fixed
SiteGround	SiteGround Security	≤ 1.5.8	—

References

https://patchstack.com/database/Wordpress/Plugin/sg-security/vulnerability/wordpress-siteground-security-plugin-1-5-8-broken-access-control-vulnerability?_s_id=cve vdb-entry