CVE-2005-3991

phpMyChat 0.14.6 - Cross-Site Scripting via Medium or From Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 3 public exploits for CVE-2005-3991. PoCs published by Louis Wang.

AI-analyzed exploit summary This exploit demonstrates a cross-site scripting (XSS) vulnerability in phpMyChat 0.14.5 by injecting a script tag into the 'From' parameter of the users_popupL.php endpoint. The vulnerability arises due to insufficient input sanitization, allowing arbitrary JavaScript execution in the context of the affected site.

Description

Multiple cross-site scripting (XSS) vulnerabilities in phpMyChat 0.14.6 allow remote attackers to inject arbitrary web script or HTML via the medium parameter to (1) start_page.css.php and (2) style.css.php; or the From parameter to users_popupL.php.

Exploits (3)

exploitdb WORKING POC VERIFIED
by Louis Wang · textwebappsphp
https://www.exploit-db.com/exploits/26696

This exploit demonstrates a cross-site scripting (XSS) vulnerability in phpMyChat 0.14.5 by injecting a script tag into the 'From' parameter of the users_popupL.php endpoint. The vulnerability arises due to insufficient input sanitization, allowing arbitrary JavaScript execution in the context of the affected site.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: phpMyChat 0.14.5
No auth needed
Prerequisites: Access to the vulnerable phpMyChat instance
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by Louis Wang · textwebappsphp
https://www.exploit-db.com/exploits/26695

This exploit demonstrates a cross-site scripting (XSS) vulnerability in phpMyChat 0.14.5 by injecting arbitrary JavaScript code via the 'medium' parameter in the style.css.php file. The vulnerability arises due to insufficient input sanitization, allowing script execution in the context of the affected site.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: phpMyChat 0.14.5
No auth needed
Prerequisites: Access to the vulnerable phpMyChat instance
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by Louis Wang · textwebappsphp
https://www.exploit-db.com/exploits/26694

This exploit demonstrates a cross-site scripting (XSS) vulnerability in phpMyChat 0.14.5 by injecting arbitrary JavaScript code via the 'medium' parameter in the 'start_page.css.php' file. The vulnerability arises due to insufficient input sanitization.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: phpMyChat 0.14.5
No auth needed
Prerequisites: Access to the vulnerable phpMyChat instance
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/15679
Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/221
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/418397/100/0/threaded
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/484575/100/0/threaded

Scores

EPSS 0.0178
EPSS Percentile 75.5%

Details

Status published
Products (1)
phpheaven/phpmychat 0.14.6
Published Dec 04, 2005
Tracked Since Feb 18, 2026