CVEvulnerability

CVE-2020-35590

9.8 CRITICAL Published 2020-12-21 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-12-21
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-307

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.

Affected configurations

• limitloginattempts limit login attempts reloaded (< 2.17.4)

Related

Weakness · CWE (1)

  • CWE-307 Improper Restriction of Excessive Authentication Attempts weakness

References