CVE-2009-3421

CRITICAL
9.8
CVSS Score
Published: September 25, 2009 at 10:00 PM UTC
Updated: June 16, 2026 at 11:11 PM UTC
1 product affected across 1 vendorPao Bacheca Guestbook

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Severity
CRITICAL9.8
Exploit prediction
EPSS 5%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

Third Party Advisoryx_refsource_SECUNIABroken LinkVendor Advisory
http://secunia.com/advisories/36023
Exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
http://www.exploit-db.com/exploits/9293
VDB Entryx_refsource_OSVDBBroken LinkExploit
http://www.osvdb.org/56757
VDB Entryx_refsource_XFThird Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/52100

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-287

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