CVE-2026-100877

MEDIUM 4.3

mathurvishal CloudClassroom-PHP-Project registrationform.php cross site scripting

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79 CWE-94
Vendor	mathurvishal
Product	cloudclassroom-php-project
Published	Sep 27, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

mathurvishal / CloudClassroom-PHP-Project

5dadec098bfbbf3300d60c3494db3fb95b66e7be

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/410807 vuldb.com: https://vuldb.com/vuln/410807/cti vuldb.com: https://vuldb.com/cve/CVE-2026-100877 vuldb.com: https://vuldb.com/submit/915444 github.com: https://github.com/rmsbpro/Advisory/blob/main/registrationform-stored-xss.md

Credits

🔍 rmsbpro (VulDB User) VulDB CNA Team