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2.1

CloudClassroom-PHP-Project updateguest.php lets attackers access database

CVE-2026-100894 · published 21 days ago
Summary

The updateguest.php page in the CloudClassroom-PHP-Project can be tricked into running unauthorized database commands when a specially crafted guest name is supplied. This can be done from anywhere on the internet, potentially exposing student or class data. Apply the latest code updates from the project or patch the file to properly validate input.

Original advisory text
mathurvishal CloudClassroom-PHP-Project updateguest.php sql injection
A vulnerability was identified in mathurvishal CloudClassroom-PHP-Project up to 5dadec098bfbbf3300d60c3494db3fb95b66e7be. This issue affects some unknown processing of the file updateguest.php. The manipulation of the argument gname leads to sql injection. The attack may be initiated remotely. The exploit is publicly available and might be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The vendor was contacted early about this disclosure but did not respond in any way.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
2.1 Low
Exploitation
<1% chance of attack within 30 days
Type
CWE-74Injection
CWE-89SQL Injection
Timeline
Published28 Sep 2026
Updated19 Oct 2026
First seen28 Sep 2026
Sources
CVE-2026-100894 · NVD
CVE-2026-100894 · OSV
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