CVE-2009-3421

9.8 CRITICAL

Published: September 25, 2009 Modified: April 23, 2026

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://secunia.com/advisories/36023

Source: cve@mitre.org

Broken Link Vendor Advisory

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

Source: cve@mitre.org

Third Party Advisory VDB Entry

http://www.osvdb.org/56757

Source: cve@mitre.org

Broken Link Exploit

https://exchange.xforce.ibmcloud.com/vulnerabilities/52100

Source: cve@mitre.org

Third Party Advisory VDB Entry

http://secunia.com/advisories/36023

Source: af854a3a-2127-422b-91ae-364da2661108

Broken Link Vendor Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory VDB Entry

http://www.osvdb.org/56757

Source: af854a3a-2127-422b-91ae-364da2661108

Broken Link Exploit

https://exchange.xforce.ibmcloud.com/vulnerabilities/52100

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory VDB Entry

8 reference(s) from NVD

Quick Stats

CVSS v3 Score

9.8 / 10.0

EPSS (Exploit Probability)

1.6%

82th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-287

Affected Vendors

zenas

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