CVE-2026-100313: mathurvishal CloudClassroom-PHP-Project updatequery.php cross site scripting
A weakness has been identified in mathurvishal CloudClassroom-PHP-Project up to 5dadec098bfbbf3300d60c3494db3fb95b66e7be. This affects an unknown function of the file updatequery.php. Executing a manipulation of the argument queryx can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
Event History
Frequently Asked Questions
What access does an attacker need to exploit this issue?
The attack can be launched remotely and requires no privileges. Exploitation does require user interaction, consistent with the XSS attack vector.
Which deployments should be considered potentially affected?
Deployments of mathurvishal CloudClassroom-PHP-Project containing code up to commit 5dadec098bfbbf3300d60c3494db3fb95b66e7be should be considered potentially affected. Release-version boundaries are not available because the project uses rolling releases.
Is public exploit information available?
Yes. A public exploit has been made available and could be used in attacks.
What can be done if an update is not available?
The available information does not identify a vendor fix or a specific mitigation. The vendor reportedly did not respond to the disclosure, so teams should review exposure of updatequery.php and handling of the queryx argument in their deployed code.