CVE-2025-15370
Shield Security <= 21.0.9 - Authenticated (Subscriber+) Insecure Direct Object Reference to Disable Google Authenticator
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-639 |
| Vendor | paultgoodchild |
| Product | shield: blocks bots, protects users, and prevents security breaches |
| Published | Jan 16, 2026 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
paultgoodchild / Shield: Blocks Bots, Protects Users, and Prevents Security Breaches
0 ≤ 21.0.9
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/d777014a-5397-4062-af39-7ea86589a0d0?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wp-simple-firewall/tags/21.0.8/src/lib/src/ActionRouter/Actions/MfaGoogleAuthToggle.php plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3438647/wp-simple-firewall
Credits
Dmitrii Ignatyev