CVE-2007-2149

Chatness <2.5.3 - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2007-2149. PoCs published by Gammarays.

AI-analyzed exploit summary This exploit leverages an authentication bypass and arbitrary file write vulnerability in Chatness <= 2.5.3 to extract admin credentials and deploy a PHP shell. It first fetches the admin username and password from /admin/options.php, logs in, and then overwrites head.html with malicious PHP code via /admin/save.php.

Description

Stephen Craton (aka WiredPHP) Chatness 2.5.3 and earlier stores usernames and unencrypted passwords in (1) classes/vars.php and (2) classes/varstuff.php, and recommends 0666 or 0777 permissions for these files, which allows local users to gain privileges by reading the files, and allows remote attackers to obtain credentials via a direct request for admin/options.php.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Gammarays · phpwebappsphp
https://www.exploit-db.com/exploits/3725

This exploit leverages an authentication bypass and arbitrary file write vulnerability in Chatness <= 2.5.3 to extract admin credentials and deploy a PHP shell. It first fetches the admin username and password from /admin/options.php, logs in, and then overwrites head.html with malicious PHP code via /admin/save.php.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Chatness <= 2.5.3
No auth needed
Prerequisites: Target URL with vulnerable Chatness installation
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/465547/100/0/threaded
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/24873
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/1386
Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/2595

Scores

EPSS 0.0309
EPSS Percentile 86.0%

Details

Status published
Products (1)
stephen_craton/chatness < 2.5.3
Published Apr 19, 2007
Tracked Since Feb 18, 2026