Vulnerability record · CVE-2007-4256 · published 8 August 2007

CVE-2007-4256: Ynp portal systems vulnerability

Ynp · Portal Systems

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.

5.0 CVSS 2.0 Medium EPSS 6.4% · top 6.5%

5.0CVSS 2.0 base score

6.4%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References

16 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Portal Systems Ynp

References

Link	Tags
http://osvdb.org/39198
https://www.exploit-db.com/exploits/4261
http://osvdb.org/39198
https://www.exploit-db.com/exploits/4261

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Source: NIST National Vulnerability Database (record CVE-2007-4256), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.