CVE-2026-18356 PUBLISHED

Limit Login Attempts Reloaded < 3.3.5 - Username Denylist Bypass via Case Variant and Account Email

Assigner: WPScan
Reserved: 30.07.2026 Published: 21.08.2026 Updated: 21.08.2026

The Limit Login Attempts Reloaded WordPress plugin before 3.3.5 does not compare logins against its username denylist case-insensitively and does not account for the account's email address, allowing an account an administrator intended to block from logging in to authenticate anyway.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS Score: 3.7

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Unknown
Product	Limit Login Attempts Security
Versions	Default: unaffected affected from 0 to 3.3.5 (excl.)

Credits

Artus KG finder
WPScan coordinator

References

https://wpscan.com/vulnerability/fbcf5a9a-f204-49b8-aa80-748a8a7b5245/

Problem Types

CWE-184 Incomplete Blacklist CWE