CVE-2026-100311 mathurvishal CloudClassroom-PHP-Project Faculty Video Management managevideos2.php cross site scripting
Remote attackers can inject malicious scripts via video management fields in CloudClassroom-PHP-Project, potentially leading to session hijacking or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-100311?
CVE-2026-100311 is a medium-severity cross-site scripting vulnerability in mathurvishal CloudClassroom-PHP-Project, published on 26 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A vulnerability was identified in mathurvishal CloudClassroom-PHP-Project up to 5dadec098bfbbf3300d60c3494db3fb95b66e7be. The affected element is an unknown function of the file managevideos2.php of the component Faculty Video Management. Such manipulation of the argument V_Title/V_Url/V_Remarks leads to cross site scripting. The attack may be performed from remote. The exploit is publicly available and might be used. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-100311?
How do I fix CVE-2026-100311?
No fix has been published for CVE-2026-100311 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-100311 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100311 exists.
Sources
Also known as GHSA-jm43-phf9-333q.