CVE-2005-4260

PHP-Nuke 7.9 - Cross-Site Scripting via Tag Sanitization Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2005-4260. PoCs published by Maksymilian Arciemowicz.

AI-analyzed exploit summary This is a writeup describing a content filtering bypass vulnerability in PHPNuke 7.9 and prior versions. It demonstrates how an attacker can bypass content filters to perform XSS or HTML injection via malformed iframe tags in specific modules.

Description

Interpretation conflict in includes/mainfile.php in PHP-Nuke 7.9 and later allows remote attackers to perform cross-site scripting (XSS) attacks by replacing the ">" in the tag with a "<", which bypasses the regular expressions that sanitize the data, but is automatically corrected by many web browsers. NOTE: it could be argued that this vulnerability is due to a design limitation of many web browsers; if so, then this should not be treated as a vulnerability in PHP-Nuke.

Exploits (1)

exploitdb WRITEUP VERIFIED
by Maksymilian Arciemowicz · textwebappsphp
https://www.exploit-db.com/exploits/26817

This is a writeup describing a content filtering bypass vulnerability in PHPNuke 7.9 and prior versions. It demonstrates how an attacker can bypass content filters to perform XSS or HTML injection via malformed iframe tags in specific modules.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: PHPNuke 7.9 and prior
No auth needed
Prerequisites: Access to the target PHPNuke instance
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/419496/100/0/threaded
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/419991/100/0/threaded
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/15855

Scores

EPSS 0.0211
EPSS Percentile 79.4%

Details

Status published
Products (8)
francisco_burzi/php-nuke 7.0
francisco_burzi/php-nuke 7.1
francisco_burzi/php-nuke 7.2
francisco_burzi/php-nuke 7.3
francisco_burzi/php-nuke 7.6
francisco_burzi/php-nuke 7.7
francisco_burzi/php-nuke 7.8
francisco_burzi/php-nuke 7.9
Published Dec 15, 2005
Tracked Since Feb 18, 2026