Vulnerability Description
LimitLoginAttempts.php in the limit-login-attempts-reloaded plugin before 2.17.4 for WordPress allows a bypass of (per IP address) rate limits because the X-Forwarded-For header can be forged. When the plugin is configured to accept an arbitrary header for the client source IP address, a malicious user is not limited to perform a brute force attack, because the client IP header accepts any arbitrary string. When randomizing the header input, the login count does not ever reach the maximum allowed retries.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Limitloginattempts | Limit Login Attempts Reloaded | < 2.17.4 |
Related Weaknesses (CWE)
References
- https://n4nj0.github.io/advisories/wordpress-plugin-limit-login-attempts-reloadeThird Party Advisory
- https://wordpress.org/plugins/limit-login-attempts-reloaded/#developersProductThird Party Advisory
- https://n4nj0.github.io/advisories/wordpress-plugin-limit-login-attempts-reloadeThird Party Advisory
- https://wordpress.org/plugins/limit-login-attempts-reloaded/#developersProductThird Party Advisory
FAQ
What is CVE-2020-35590?
CVE-2020-35590 is a vulnerability with a CVSS score of 9.8 (CRITICAL). LimitLoginAttempts.php in the limit-login-attempts-reloaded plugin before 2.17.4 for WordPress allows a bypass of (per IP address) rate limits because the X-Forwarded-For header can be forged. When th...
How severe is CVE-2020-35590?
CVE-2020-35590 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-35590?
Check the references section above for vendor advisories and patch information. Affected products include: Limitloginattempts Limit Login Attempts Reloaded.