HOMEVULNERABILITIESCVE-2013-4983
CRITICALPOC

CVE-2013-4983

CWE-78Published: September 10, 2013· Updated: Jun 16, 2026

10.0
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2013-4983 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2013-4983. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected Vendors & Products

sophos2 product(s)
web appliance firmwareweb appliance
Source: NVD CPE · 77 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.sophos.com/en-us/support/knowledgebase/119773.aspx
ADVISORYhttp://www.sophos.com/en-us/support/knowledgebase/119773.aspx

All References (4)

→
http://www.coresecurity.com/advisories/sophos-web-protection-appliance-multiple-vulnerabilitiesExploit
→
http://www.sophos.com/en-us/support/knowledgebase/119773.aspxVendor Advisory
→
http://www.coresecurity.com/advisories/sophos-web-protection-appliance-multiple-vulnerabilitiesExploit
→
http://www.sophos.com/en-us/support/knowledgebase/119773.aspxVendor Advisory

Quick Facts

CVE IDCVE-2013-4983
CVSS Score10.0 / 10
SeverityCRITICAL
WeaknessCWE-78
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedSep 10, 2013

Related CVEs (CWE-78)

CVE-2023-37903
10.0
CVE-2023-3939
10.0
CVE-2026-46339
10.0
CVE-2019-4202
10.0
CVE-2020-6364
10.0
CVE-2017-14459
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2013-4983 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2013-4983·NVD