CVE-2026-100312 mathurvishal CloudClassroom-PHP-Project updateguest.php sql injection

Medium 5.3 Published Updated

Remote attackers can exploit SQL injection in updateguest.php to read or modify database contents in the CloudClassroom PHP Project.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-100312?

CVE-2026-100312 is a medium-severity SQL injection vulnerability in mathurvishal CloudClassroom-PHP-Project, published on 26 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A security flaw has been discovered in mathurvishal CloudClassroom-PHP-Project up to 5dadec098bfbbf3300d60c3494db3fb95b66e7be. The impacted element is an unknown function of the file /updateguest.php. Performing a manipulation of the argument gname/editassid results in sql injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-89, CWE-74

Which versions are affected by CVE-2026-100312?

How do I fix CVE-2026-100312?

No fix has been published for CVE-2026-100312 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2026-100312 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100312 exists.

Sources

Also known as GHSA-hhpf-rfcr-8fx8.

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