CVE-2009-3421 EXPLOIT
9.8
CRITICAL · CVSS 3.1 · EPSS 5% (pctl 92)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 4.99% — more likely to be exploited than 92% of all CVEs |
| Weakness | CWE-287 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2009-09-25 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| zenas | pao-bacheca guestbook |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | PaoBacheca Guestbook 2.1 - 'login_ok' Authentication Bypass | 2009-07-28 |
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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