CVE-2025-52576

Kanboard is project management software that focuses on the Kanban methodology. Prior to version 1.2.46, Kanboard is vulnerable to username enumeration and IP spoofing-based brute-force protection bypass. By analyzing login behavior and abusing trusted HTTP headers, an attacker can determine valid usernames and circumvent rate-limiting or blocking mechanisms. Any organization running a publicly accessible Kanboard instance is affected, especially if relying on IP-based protections like Fail2Ban or CAPTCHA for login rate-limiting. Attackers with access to the login page can exploit this flaw to enumerate valid usernames and bypass IP-based blocking mechanisms, putting all user accounts at higher risk of brute-force or credential stuffing attacks. Version 1.2.46 contains a patch for the issue.
Configurations

Configuration 1 (hide)

cpe:2.3:a:kanboard:kanboard:*:*:*:*:*:*:*:*

History

22 Aug 2025, 18:23

Type Values Removed Values Added
First Time Kanboard
Kanboard kanboard
References () https://github.com/kanboard/kanboard/blob/cbb7e60fb595ff4572bb8801b275a0b451c4bda0/app/Model/UserLockingModel.php#L101-L104 - () https://github.com/kanboard/kanboard/blob/cbb7e60fb595ff4572bb8801b275a0b451c4bda0/app/Model/UserLockingModel.php#L101-L104 - Product
References () https://github.com/kanboard/kanboard/blob/cbb7e60fb595ff4572bb8801b275a0b451c4bda0/app/Subscriber/AuthSubscriber.php#L96-L108 - () https://github.com/kanboard/kanboard/blob/cbb7e60fb595ff4572bb8801b275a0b451c4bda0/app/Subscriber/AuthSubscriber.php#L96-L108 - Product
References () https://github.com/kanboard/kanboard/commit/3079623640dc39f9c7b0c840d2a79095331051f1 - () https://github.com/kanboard/kanboard/commit/3079623640dc39f9c7b0c840d2a79095331051f1 - Patch
References () https://github.com/kanboard/kanboard/security/advisories/GHSA-qw57-7cx6-wvp7 - () https://github.com/kanboard/kanboard/security/advisories/GHSA-qw57-7cx6-wvp7 - Vendor Advisory
CPE cpe:2.3:a:kanboard:kanboard:*:*:*:*:*:*:*:*

26 Jun 2025, 18:57

Type Values Removed Values Added
New CVE

Information

Published : 2025-06-25 17:15

Updated : 2025-08-22 18:23


NVD link : CVE-2025-52576

Mitre link : CVE-2025-52576

CVE.ORG link : CVE-2025-52576


JSON object : View

Products Affected

kanboard

  • kanboard
CWE
CWE-203

Observable Discrepancy