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TI-2009-03260 Aliases CVE-2009-3421GHSA-9x4q-26cx-fr52

login.php in Zenas PaoBacheca Guestbook 2.1, when register_globals is enabled, allows…

Priority MEDIUM 50CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

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.

Why it matters now

EPSS 0.04989 92nd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:zenas:pao-bacheca_guestbook:2.1:*:*:*:*:*:*:*2.1VulnerableZenas
  • cpe:2.3:a:zenas:pao-bacheca_guestbook:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·Zenas

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2009-3421
  2. 2026-10-03 Alias added: GHSA-9x4q-26cx-fr52

References

Exploit 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences