Stored cross-site scripting in Simple e-Learning System

1) Stored cross-site scripting

EUVDB-ID: #VU65396

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:P/RL:U/RC:C]

CVE-ID: CVE-2022-2396

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the Bio parameter in the /vcs/claire_blake endpoint. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Simple e-Learning System: 1.0

External links

http://github.com/CyberThoth/CVE/blob/83c243538386cd0761025f85eb747eab7cae5c21/CVE/Simple%20e-Learning%20System/Cross%20Site%20Scripting(Stored)/POC.md
http://vuldb.com/?id.203779

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.