What’s Vulnerable › Vulnerabilities

CVE-2009-3421

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2009-09-25 · updated 2026-06-16
• Weakness: CWE-287

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.

Affected products

• Zenas Pao-Bacheca Guestbook: 2.1

References

• http://secunia.com/advisories/36023
• http://www.exploit-db.com/exploits/9293
• http://www.osvdb.org/56757
• https://exchange.xforce.ibmcloud.com/vulnerabilities/52100
• http://secunia.com/advisories/36023
• http://www.exploit-db.com/exploits/9293
• http://www.osvdb.org/56757
• https://exchange.xforce.ibmcloud.com/vulnerabilities/52100

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