schule111 Schule up to 1.0.0 forgot_password.php allocation of resources

Summaryinfo

A vulnerability, which was classified as problematic, has been found in schule111 Schule up to 1.0.0. Affected is an unknown function of the file forgot_password.php. The manipulation leads to allocation of resources. This vulnerability is traded as CVE-2025-48375. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in schule111 Schule up to 1.0.0 and classified as problematic. This issue affects an unknown functionality of the file forgot_password.php. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. Impacted is availability. The summary by CVE is:

Schule is open-source school management system software. Prior to version 1.0.1, the file forgot_password.php (or equivalent endpoint responsible for email-based OTP generation) lacks proper rate limiting controls, allowing attackers to abuse the OTP request functionality. This vulnerability can be exploited to send an excessive number of OTP emails, leading to potential denial-of-service (DoS) conditions or facilitating user harassment through email flooding. Version 1.0.1 fixes the issue.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-48375 since 05/19/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

By approaching the search of inurl:forgot_password.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.0.1 eliminates this vulnerability.

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Productinfo

Vendor

• schule111

Name

• Schule

Version

• 1.0

Website

• Product: https://github.com/schule111/Schule/

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CPE 2.2info

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