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Vulnerability record · CVE-2011-4813 · published 14 December 2011

CVE-2011-4813: Whmcs whmcompletesolution path traversal vulnerability

Whmcs · Whmcompletesolution

Directory traversal vulnerability in clientarea.php in WHMCompleteSolution (WHMCS) 3.x.x allows remote attackers to read arbitrary files via an invalid action and a ../ (dot dot slash) in the templatefile parameter.

5.0 CVSS 2.0 Medium EPSS 2.9% · top 13.7% CWE-22 · Path traversal
5.0CVSS 2.0 base score
2.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
16 Jun 2026Last modified by NVD

Description

Directory traversal vulnerability in clientarea.php in WHMCompleteSolution (WHMCS) 3.x.x allows remote attackers to read arbitrary files via an invalid action and a ../ (dot dot slash) in the templatefile 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.

References

LinkTags
http://www.exploit-db.com/exploits/18081
http://www.exploit-db.com/exploits/18081

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2011-4813), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.