CVE-2026-100877mathurvishal CloudClassroom-PHP-Project registrationform.php cross site scripting

Description

A vulnerability was determined in mathurvishal CloudClassroom-PHP-Project up to 5dadec098bfbbf3300d60c3494db3fb95b66e7be. Affected by this vulnerability is an unknown functionality of the file registrationform.php. Executing a manipulation of the argument FName/LName/Addrs can lead to cross site scripting. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. The vendor was contacted early about this disclosure but did not respond in any way.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• VDB-410807 | mathurvishal CloudClassroom-PHP-Project registrationform.php cross site scripting vdb-entrytechnical-description
• VDB-410807 | CTI Indicators (IOB, IOC, TTP, IOA) signaturepermissions-required
• CVE-2026-100877 | CVE Analysis and Report third-party-advisory
• Submit #915444 | https://github.com/mathurvishal/CloudClassroom-PHP-Project CloudClassroom-PHP-Project 5dadec098bfbbf3300d60c3494db3fb95b66e7be Cross Site Scripting third-party-advisory
• https://github.com/rmsbpro/Advisory/blob/main/registrationform-stored-xss.md exploit