CVE-2009-3421 describes an authentication bypass vulnerability in Zenas PaoBacheca Guestbook 2.1, specifically within the login.php component when the register_globals PHP setting is enabled. This critical flaw allows remote attackers to gain administrative access by manipulating the login_ok parameter. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. While not observed in active exploitation (KEV: No), public exploit code exists via ExploitDB (EDB-9293), indicating readily available attack methods, despite minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.1CPE matchmatch criteria | cpe:2.3:a:zenas:pao-bacheca_guestbook:2.1:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.