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Fencer Intel
medium 6.5

CVE-2009-4421 json

Directory traversal vulnerability in languages_cgi.php in Simple PHP Blog 0.5.1 and earlier allows remote authenticated users to include an…

published 16y ago modified 4mo ago also EUVD-2009-4388

cvss
6.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits
1
Exploit-DB

Summary

Directory traversal vulnerability in languages_cgi.php in Simple PHP Blog 0.5.1 and earlier allows remote authenticated users to include and execute arbitrary local files via a .. (dot dot) in the blog_language1 parameter.

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Timeline

  1. First public exploit (EDB-10604)
  2. Published

Exploit prediction

2.00% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-10604 Simple PHP Blog 0.5.1 - Local File Inclusion webapps, 2009-12-22
  • securityfocus.com http://www.securityfocus.com/bid/37434 referenced PoC, tagged "exploit" by a source, unverified
  • archives.neohapsis.com http://archives.neohapsis.com/archives/fulldisclosure/2009-12/0398.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.