How to fix CVE-2024-57423?

Within 30 days: Identify affected systems running CloudClassroom-PHP Project and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Is PHP affected by CVE-2024-57423?

Organizations using CloudClassroom-PHP Project should be aware of moderate risk from CVE-2024-57423, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Proof-of-concept code is publicly available.

CVE-2024-57423

MEDIUM

2025-02-26 [email protected]

6.1

CVSS 3.1

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:28 vuln.today

PoC Detected

Apr 07, 2025 - 18:45 vuln.today

Public exploit code

CVE Published

Feb 26, 2025 - 21:15 nvd

MEDIUM 6.1

Description

A Cross Site Scripting vulnerability in CloudClassroom-PHP Project v1.0 allows a remote attacker to execute arbitrary code via the exid parameter of the assessment function.

Analysis

A Cross Site Scripting vulnerability in CloudClassroom-PHP Project v1.0 allows a remote attacker to execute arbitrary code via the exid parameter of the assessment function. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical Context

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A Cross Site Scripting vulnerability in CloudClassroom-PHP Project v1.0 allows a remote attacker to execute arbitrary code via the exid parameter of the assessment function. Affected products include: Vishalmathur Cloudclassroom-Php Project.

Affected Products

Vishalmathur Cloudclassroom-Php Project.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.1

CVSS: +30

POC: +20

CVE-2024-57423 vulnerability details – vuln.today

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CVE-2024-57423

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CVE-2024-57423

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Lifecycle Timeline

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