Vulnerabilities / Nexter Extension – Site Enhancements Toolkit / WPSEC-2026-0982
Nexter Extension – Site Enhancements Toolkit <= 4.7.6 - Unauthenticated Login Attempt Limit Bypass via IP Spoofing
Medium 6.5
CWE-348Fixed in 4.7.7
- ID
- WPSEC-2026-0982
- Plugin
- Nexter Extension – Security, Performance, Code Snippets & Site Toolkit (nexter-extension)
- Affected
- from 4.3.0 before 4.7.7
- Remediation
- Update to 4.7.7 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
- Weakness
- CWE-348
- Usage
- Plugin Low · Affected versions None seen among sites WPSec scans, 2026-10-15
- Attack surface
- Nexter Extension – Site Enhancements Toolkit on WPSec AttackSurface
- Fix released
- Published
Description
The Nexter Extension plugin for WordPress is vulnerable to a brute-force protection bypass via IP address spoofing in all versions up to, and including, 4.7.6. This is due to the Limit Login Attempts feature trusting the user-controllable Client-IP and X-Forwarded-For headers to determine the visitor's IP address. This makes it possible for unauthenticated attackers to evade the login attempt lockout by rotating spoofed IP addresses, or to lock out other users by spoofing their IP addresses, when the Limit Login Attempts feature is enabled.
References
- https://wpsec.com/vuln/WPSEC-2026-0982/
- https://plugins.svn.wordpress.org/nexter-extension/tags/4.7.7/
- https://wordpress.org/plugins/nexter-extension/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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