CVE-2009-3421

CRITICAL

Zenas Pao-bacheca Guestbook - Authentication Bypass

Title source: rule

Description

login.php in Zenas PaoBacheca Guestbook 2.1, when register_globals is enabled, allows remote attackers to bypass authentication and gain administrative access by setting the login_ok parameter to 1.

Exploits (1)

exploitdb WORKING POC VERIFIED

by SirGod · textwebappsphp

https://www.exploit-db.com/exploits/9293

View Code ZIP pw:eip

References (4)

[Broken Link, Vendor Advisory] http://secunia.com/advisories/36023

[Third Party Advisory, VDB Entry] http://www.exploit-db.com/exploits/9293

[Broken Link, Exploit] http://www.osvdb.org/56757

[Third Party Advisory, VDB Entry] https://exchange.xforce.ibmcloud.com/vulnerabilities/52100

Scores

CVSS v3 9.8

EPSS 0.0157

EPSS Percentile 81.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-287

Status draft

Affected Products (1)

zenas/pao-bacheca_guestbook

Timeline

Published Sep 25, 2009

Tracked Since Feb 18, 2026