Limit Login Attempts Security
Monthly
Username denylist bypass in Limit Login Attempts Security (Limit Login Attempts Reloaded) before version 3.3.5 allows a WordPress user who has been explicitly blocked by an administrator to successfully authenticate by varying the case of their username or by supplying the account's associated email address instead. This is a logic flaw in the plugin's denylist enforcement, entirely defeating the access control that a site administrator intended to impose on specific accounts. A publicly available proof-of-concept is documented in the WPScan advisory; the low CVSS score of 3.7 with AC:H reflects that successful exploitation requires the attacker to already hold valid credentials for the denylisted account.
Username denylist bypass in Limit Login Attempts Security (Limit Login Attempts Reloaded) before version 3.3.5 allows a WordPress user who has been explicitly blocked by an administrator to successfully authenticate by varying the case of their username or by supplying the account's associated email address instead. This is a logic flaw in the plugin's denylist enforcement, entirely defeating the access control that a site administrator intended to impose on specific accounts. A publicly available proof-of-concept is documented in the WPScan advisory; the low CVSS score of 3.7 with AC:H reflects that successful exploitation requires the attacker to already hold valid credentials for the denylisted account.