CVE-2025-66121

SiteGround Security <= 1.5.8 - Missing Authorization

mediumMissing Authorization

5.3

CVSS Score

5.3

CVSS Score

medium

Severity

1.5.9

Patched in

47d

Time to patch

Description

The SiteGround Security plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 1.5.8. This makes it possible for unauthenticated attackers to perform an unauthorized action.

CVSS Vector Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

None

Confidentiality

Low

Integrity

None

Availability

Technical Details

Affected versions<=1.5.8

PublishedNovember 30, 2025

Last updatedJanuary 15, 2026

Affected pluginsg-security

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/25922abb-7604-4134-92e8-23a1559f57fb?source=api-prod

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