CVE-2013-4983
CriticalPublic exploitThe 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.
Published Sep 10, 2013 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2013-4983 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Web Appliance Firmware (Sophos).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 90% probability of exploitation in the next 30 days.
- Fixed versions are available, including Web Appliance Firmware 3.7.9.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
90%
Higher than 99.7% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2013-4983 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Affected Products
76 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Web Appliance FirmwareSophos | 3.7.8, 3.0.0, 3.0.1, 3.0.1.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5 | 3.7.9 |
Patched Releases
Web Appliance Firmware
3.7.9
Timeline
Publicly disclosed
Sep 10, 2013
Last updated
Apr 28, 2026
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
FAQ
Common Questions.
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.
Affected: Web Appliance Firmware (Sophos) versions 3.7.8, 3.0.0, 3.0.1, 3.0.1.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Web Appliance Firmware 3.7.9.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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