CVE-2025-66121

MEDIUM

SiteGround Security <= 1.5.8 - Missing Authorization

Title source: llm

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.

References (1)

Core 1

Core References

Third Party Advisory vdb-entry

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

Scores

CVSS v3 5.3

EPSS 0.0027

EPSS Percentile 18.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-862

Status published

Products (2)

SiteGround/SiteGround Security < 1.5.8

SiteGround/SiteGround Security < <= 1.5.8

Published Dec 16, 2025

Tracked Since Feb 18, 2026