CVE-2011-4813 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 template...

MediumCVSS 5.0 EPSS 2.8% Public exploit

Published: 2011-12-14 17:00 (approximate time: when CVE Radar first recorded it)
Updated: 2026-06-17 02:35
Exploit status: Public exploit available

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.

Affected products

Product	Affected versions	Fixed in
whmcs whmcompletesolution	= 3.0.0	No fix listed

References

18081 exploit

CVSS v2.0

5.0 Medium

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

Access Vector: Network
Access Complexity: Low
Authentication: None
Confidentiality: Partial
Integrity: None
Availability: None

Weakness & likelihood

EPSS (exploitation probability, 30 days): 2.80% (percentile 86.6)
CWE: CWE-22

Public exploit references

Metadata only. CVERadar never hosts or runs exploit code.

WHMCompleteSolution (WHMCS) 3.x - 'clientarea.php' Local File Disclosure Exploit · Exploit Database (OffSec) · 2011-11-04