CVE-2006-6764

Keep It Simple Guest Book 5.1.1 - Remote File Inclusion Code Execution

Title source: manual
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2006-6764. PoCs published by mdx.

AI-analyzed exploit summary This exploit demonstrates a Remote File Include (RFI) vulnerability in KISGB (Keep It Simple Guest Book) due to improper input validation in the 'default_path_for_themes' parameter in authenticate.php. The vulnerability is exploitable only in CGI PHP environments, allowing remote code execution via crafted HTTP requests.

Description

PHP remote file inclusion vulnerability in authenticate.php in Keep It Simple Guest Book (KISGB), when executing PHP through CGI, allows remote attackers to execute arbitrary PHP code via a URL in the default_path_to_themes parameter.

Exploits (1)

exploitdb WORKING POC VERIFIED
by mdx · textwebappsphp
https://www.exploit-db.com/exploits/2979

This exploit demonstrates a Remote File Include (RFI) vulnerability in KISGB (Keep It Simple Guest Book) due to improper input validation in the 'default_path_for_themes' parameter in authenticate.php. The vulnerability is exploitable only in CGI PHP environments, allowing remote code execution via crafted HTTP requests.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: KISGB (Keep It Simple Guest Book)
No auth needed
Prerequisites: CGI PHP environment · Remote file hosting for malicious payload
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/21721
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/2979
Exploit, Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/23477
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2006/5147

Scores

EPSS 0.0201
EPSS Percentile 78.3%

Details

Status published
Products (2)
keep_it_simple_guest_book/keep_it_simple_guest_book 5.0
keep_it_simple_guest_book/keep_it_simple_guest_book < 5.1.1
Published Dec 27, 2006
Tracked Since Feb 18, 2026