CVE-2009-4170
CWE-200Published: December 2, 2009· Updated: Jun 16, 2026
Official Description
WP-Cumulus Plug-in 1.20 for WordPress, and possibly other versions, allows remote attackers to obtain sensitive information via a crafted request to wp-cumulus.php, probably without parameters, which reveals the installation path in an error message.
Technical Analysis
CVE-2009-4170 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A proof-of-concept (PoC) exploit exists for CVE-2009-4170. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.
From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
All References (4)
Quick Facts
Related CVEs (CWE-200)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2009-4170 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts