---
id: CVE-2026-100877
title: >-
  mathurvishal CloudClassroom-PHP-Project registrationform.php cross site
  scripting
summary: >-
  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
  manipulati…
severity: medium
cvss: 4.3
cvssVector: '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'
cvssSource: cna
cwe:
  - CWE-79
  - CWE-94
vendor: mathurvishal
product: CloudClassroom-PHP-Project
affected:
  - CloudClassroom-PHP-Project 5dadec098bfbbf3300d60c3494db3fb95b66e7be
published: '2026-09-27'
updated: '2026-09-27'
sourceUpdated: '2026-09-27T20:15:09.305Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-100877'
references:
  - url: 'https://vuldb.com/vuln/410807'
    label: >-
      VDB-410807 | mathurvishal CloudClassroom-PHP-Project registrationform.php
      cross site scripting
  - url: 'https://vuldb.com/vuln/410807/cti'
    label: 'VDB-410807 | CTI Indicators (IOB, IOC, TTP, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-100877'
    label: CVE-2026-100877 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/915444'
    label: >-
      Submit #915444 |
      https://github.com/mathurvishal/CloudClassroom-PHP-Project
      CloudClassroom-PHP-Project 5dadec098bfbbf3300d60c3494db3fb95b66e7be Cross
      Site Scripting
  - url: >-
      https://github.com/rmsbpro/Advisory/blob/main/registrationform-stored-xss.md
tags:
  - cve.org
ingestedAt: '2026-09-27T20:58:01.544Z'
---

## Overview

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.

## Affected

- `CloudClassroom-PHP-Project 5dadec098bfbbf3300d60c3494db3fb95b66e7be`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.