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Vulnerability record · CVE-2011-4810 · published 14 December 2011

CVE-2011-4810: Whmcs whmcompletesolution path traversal vulnerability

Whmcs · Whmcompletesolution

Multiple directory traversal vulnerabilities in WHMCompleteSolution (WHMCS) 3.x and 4.x allow remote attackers to read arbitrary files via the templatefile parameter to (1) submitticket.php and (2) downloads.php, and (3) the report parameter to admin/reports.php.

5.0 CVSS 2.0 Medium EPSS 6.3% · top 6.6% CWE-22 · Path traversal
5.0CVSS 2.0 base score
6.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

Multiple directory traversal vulnerabilities in WHMCompleteSolution (WHMCS) 3.x and 4.x allow remote attackers to read arbitrary files via the templatefile parameter to (1) submitticket.php and (2) downloads.php, and (3) the report parameter to admin/reports.php.

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/18088 Exploit
http://www.exploit-db.com/exploits/18088 Exploit

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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-2011-4810), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.