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5.0

YNP Portal System 2.2.0 lets attackers read any file

CVE-2007-4256 · published 19 years ago
Summary

The showpage.cgi page in YNP Portal System version 2.2.0 can be tricked into revealing any file on the server by using ".." in the request. This could expose confidential information or system details to anyone on the internet. Apply the vendor’s update or ensure the application validates and blocks such path characters.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
ynp portal_systems 2.2.0
cpe:2.3:a:ynp:portal_systems:2.2.0:*:*:*:*:*:*:*
Original advisory text
Directory traversal vulnerability in showpage.cgi in YNP Portal System 2.2.0 allows remote attackers to read arbitrary files via a .. (dot dot) in the p parameter.
Directory traversal vulnerability in showpage.cgi in YNP Portal System 2.2.0 allows remote attackers to read arbitrary files via a .. (dot dot) in the p parameter.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.0 Medium
Exploitation
6% chance of attack within 30 days
Timeline
Published8 Aug 2007
Updated3 Nov 2026
First seen29 Sep 2026
Sources
CVE-2007-4256 · NVD
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