Froxlor up to 2.3.7 API Command Customers.php password/data_2fa weak password hash

Summaryinfo

A vulnerability has been found in Froxlor up to 2.3.7 and classified as problematic. Affected by this issue is the function Customers.get/Customers.listing/Admins.get/Admins.listing/Ftps.get/Ftps.listing of the file lib/Froxlor/Api/Commands/Customers.php of the component API Command Handler. This manipulation of the argument password/data_2fa causes weak password hash. This vulnerability is registered as CVE-2026-62988. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Froxlor up to 2.3.7. It has been declared as problematic. Affected by this vulnerability is the function Customers.get/Customers.listing/Admins.get/Admins.listing/Ftps.get/Ftps.listing of the file lib/Froxlor/Api/Commands/Customers.php of the component API Command Handler. The manipulation of the argument password/data_2fa with an unknown input leads to a weak password hash vulnerability. The CWE definition for the vulnerability is CWE-916. The product generates a hash for a password, but it uses a scheme that does not provide a sufficient level of computational effort that would make password cracking attacks infeasible or expensive. As an impact it is known to affect confidentiality. The summary by CVE is:

Froxlor is open source server administration software. From 2.3.7 until 2.3.8, the Customers.get, Customers.listing, Admins.get, Admins.listing, Ftps.get, and Ftps.listing API commands in lib/Froxlor/Api/Commands/Customers.php, lib/Froxlor/Api/Commands/Admins.php, and lib/Froxlor/Api/Commands/Ftps.php retrieve full database rows and return them without removing password and data_2fa fields. An authenticated API caller with permission to use these endpoints can obtain customer, administrator, and FTP password hashes as well as Base32-encoded TOTP seeds for administrator and customer accounts. Password hashes can be cracked offline, and TOTP seeds can generate valid second-factor codes until two-factor authentication is reset. Exposure of both values for an account can enable takeover of the hosting panel or hosted resources and can defeat both authentication factors. This issue is fixed in version 2.3.8.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-62988 since 07/15/2026. The exploitation appears to be difficult. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

By approaching the search of inurl:lib/Froxlor/Api/Commands/Customers.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.3.8 eliminates this vulnerability.

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Productinfo

Name

• Froxlor

Version

• 2.3.0
• 2.3.1
• 2.3.2
• 2.3.3
• 2.3.4
• 2.3.5
• 2.3.6
• 2.3.7

License

• open-source

Website

• Product: https://github.com/froxlor/froxlor/

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