Shield Security <= 21.0.9 - Authenticated (Subscriber+) Insecure Direct Object Reference to Disable Google Authenticator

2026-01-15 15:58

Dmitrii Ignatyev

Strategic Overview

Status

Patched in 21.0.10

Affected PluginShield Security – Smart Bot Blocking, Brute-Force Login Protection & File Scanning

Affected Version<= 21.0.9

CVSS4.3Medium

CVECVE-2025-15370

View all Shield Security – Smart Bot Blocking, Brute-Force Login Protection & File Scanning vulnerabilities

Vulnerability Overview

The Shield: Blocks Bots, Protects Users, and Prevents Security Breaches plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 21.0.9 via the MfaGoogleAuthToggle class due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to disable Google Authenticator for any user.

Technical Analysis

REMEDIATION: Update to version 21.0.10, or a newer patched version --- IDENTIFIER: CWE-639 (Authorization Bypass Through User-Controlled Key) The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

External References

https://www.cve.org/CVERecord?id=CVE-2025-15370 https://www.wordfence.com/threat-intel/vulnerabilities/id/d777014a-5397-4062-af39-7ea86589a0d0

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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