What is CVE-2013-4983?

CVE-2013-4983 is a vulnerability in Sophos Web Appliance, classified under OS Command Injection. Published 2013-09-10.

Is CVE-2013-4983 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Sophos Web Appliance

CVE-2013-4983

The get_referers function in /opt/ws/bin/sblistpack in Sophos Web Appliance before 3.7.9.1 and 3.8 before 3.8.1.1 allows remote attackers to execute arbitrary commands via shell metacharacters in the domain parameter to end-user/index.php.

Vulnerability class: Command Injection (OS Command Injection)

Published 2013-09-10 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 10.0 (High). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.901 (99.8th percentile), scored 2026-10-19.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.901 · newest: 0.901 · change: 0.000

Affected products

Sophos Web Appliance
Sophos Web Appliance Firmware — versions 3.7.8, 3.0.0, 3.0.1

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

rapid7/metasploit-framework

References

www.coresecurity.com/advisories/sophos-web-protection-appliance-multiple-vulner… (Exploit)
www.sophos.com/en-us/support/knowledgebase/119773.aspx (Vendor Advisory)

Frequently asked questions

What is CVE-2013-4983?: CVE-2013-4983 is a vulnerability in Sophos Web Appliance, classified under OS Command Injection. Published 2013-09-10.
Is CVE-2013-4983 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.