Auth bypass in Zenas Pao-Bacheca Guestbook
CVE-2009-3421
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.050 (91.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.050 · newest: 0.050 · change: 0.000
Affected products
- Zenas Pao-Bacheca Guestbook — versions 2.1
Weakness classification (CWE)
References
- exchange.xforce.ibmcloud.com/vulnerabilities/52100 (VDB Entry, Third Party Advisory, vdb-entry)
- www.exploit-db.com/exploits/9293 (VDB Entry, Third Party Advisory, exploit)
- www.osvdb.org/56757 (Exploit, vdb-entry, Broken Link)
- secunia.com/advisories/36023 (Broken Link, Vendor Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2009-3421?
- CVE-2009-3421 is a critical-severity vulnerability in Zenas Pao-Bacheca Guestbook, classified under Improper Authentication. CVSS score: 9.8/10. Published 2009-09-25.
- How severe is CVE-2009-3421?
- Critical severity. CVSS v3 base score is 9.8 out of 10.