The Defender Security WordPress plugin before 6.4.1 does not verify that the client IP address it derives for its firewall and lockout decisions actually originates from a trusted source, trusting a user-supplied value by default, allowing unauthenticated attackers to spoof their IP address and evade IP-based protections such as login lockout and IP banning, impersonate an allowlisted address, and poison the Defender Security WordPress plugin before 6.4.1's activity logs.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 12 Nov 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Wordpress-extensions
Wordpress-extensions defender Security |
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| Vendors & Products |
Wordpress-extensions
Wordpress-extensions defender Security |
Thu, 12 Nov 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-290 | |
| Metrics |
cvssV3_1
|
Thu, 12 Nov 2026 06:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The Defender Security WordPress plugin before 6.4.1 does not verify that the client IP address it derives for its firewall and lockout decisions actually originates from a trusted source, trusting a user-supplied value by default, allowing unauthenticated attackers to spoof their IP address and evade IP-based protections such as login lockout and IP banning, impersonate an allowlisted address, and poison the Defender Security WordPress plugin before 6.4.1's activity logs. | |
| Title | Defender Security 4.9.0 - 6.4.0 - Unauthenticated IP Address Spoofing via Smart IP Detection | |
| References |
|
Projects
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Status: PUBLISHED
Assigner: WPScan
Published:
Updated: 2026-11-12T11:23:47.612Z
Reserved: 2026-10-29T11:41:45.920Z
Link: CVE-2026-119039
No data.
Status : Deferred
Published: 2026-11-12T06:17:12.143
Modified: 2026-11-12T18:49:18.840
Link: CVE-2026-119039
No data.
OpenCVE Enrichment
Updated: 2026-11-13T07:30:12Z
Weaknesses