How severe is CVE-2011-4810?

CVE-2011-4810 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-4810 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4810?

CVE-2011-4810 primarily affects Whmcs Whmcompletesolution. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-4810?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-4810 published?

CVE-2011-4810 was published on 2011-12-14 and last updated on 2026-06-16.

CVE-2011-4810

CVE-2011-4810 is a medium-severity vulnerability in Whmcs Whmcompletesolution with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Whmcs Whmcompletesolution
Published: 2011-12-14
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2011-4810?: 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.
How severe is CVE-2011-4810?: CVE-2011-4810 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-4810 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4810?: CVE-2011-4810 primarily affects Whmcs Whmcompletesolution. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-4810?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4810 published?: CVE-2011-4810 was published on 2011-12-14 and last updated on 2026-06-16.

References

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

Affected products (20)

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

More vulnerabilities in Whmcs Whmcompletesolution

CVE-2011-5061 — High (CVSS 7.5): functions.php in WHMCompleteSolution (WHMCS) 4.0.x through 5.0.x allows remote attackers to trigger arbitrary code…
CVE-2012-0693 — Medium (CVSS 5.0): submitticket.php in WHMCompleteSolution (WHMCS) 5.03 allows remote attackers to inject arbitrary code into a subject…
CVE-2011-4813 — Medium (CVSS 5.0): Directory traversal vulnerability in clientarea.php in WHMCompleteSolution (WHMCS) 3.x.x allows remote attackers to…

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