CVE-2011-4810

Exp

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.

Published: 2011-12-14 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-4810 is rated High Exploit Risk (62.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.18%). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2011-4810

EDB-ID Source Kind Published Link
18088 exploit_db edb 2011-11-07 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2011-4810

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-02 1.62% 1.18% -0.44%
2 2026-01-18 2.17% 1.62% -0.55%
3 2025-11-04 — 2.17% —

Full EPSS history (21 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4810

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2011-4810

Affected software / configurations for CVE-2011-4810

Vendor Product Version Raw CPE
whmcs whmcompletesolution 3.0.0 cpe:2.3:a:whmcs:whmcompletesolution:3.0.0:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.0.0 cpe:2.3:a:whmcs:whmcompletesolution:4.0.0:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.0.1 cpe:2.3:a:whmcs:whmcompletesolution:4.0.1:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.0.2 cpe:2.3:a:whmcs:whmcompletesolution:4.0.2:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.1.0 cpe:2.3:a:whmcs:whmcompletesolution:4.1.0:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.1.1 cpe:2.3:a:whmcs:whmcompletesolution:4.1.1:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.1.2 cpe:2.3:a:whmcs:whmcompletesolution:4.1.2:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.2.0 cpe:2.3:a:whmcs:whmcompletesolution:4.2.0:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.2.0 cpe:2.3:a:whmcs:whmcompletesolution:4.2.0:beta_r1:*:*:*:*:*:*
whmcs whmcompletesolution 4.2.0 cpe:2.3:a:whmcs:whmcompletesolution:4.2.0:beta_r2:*:*:*:*:*:*
whmcs whmcompletesolution 4.2.0 cpe:2.3:a:whmcs:whmcompletesolution:4.2.0:beta_r3:*:*:*:*:*:*
whmcs whmcompletesolution 4.2.1 cpe:2.3:a:whmcs:whmcompletesolution:4.2.1:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.3.0 cpe:2.3:a:whmcs:whmcompletesolution:4.3.0:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.3.1 cpe:2.3:a:whmcs:whmcompletesolution:4.3.1:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.4.0 cpe:2.3:a:whmcs:whmcompletesolution:4.4.0:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.4.1 cpe:2.3:a:whmcs:whmcompletesolution:4.4.1:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.4.2 cpe:2.3:a:whmcs:whmcompletesolution:4.4.2:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.5.0 cpe:2.3:a:whmcs:whmcompletesolution:4.5.0:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.5.1 cpe:2.3:a:whmcs:whmcompletesolution:4.5.1:*:*:*:*:*:*:*
whmcs whmcompletesolution 4.5.2 cpe:2.3:a:whmcs:whmcompletesolution:4.5.2:*:*:*:*:*:*:*

References for CVE-2011-4810

cvelogic Threat Intelligence