TI-2023-16494 Aliases CVE-2023-33336 GHSA-77xg-4prx-v7j6

Reflected cross site scripting (XSS) vulnerability was discovered in Sophos Web Appliance…

MEDIUM 55CWE-79Published 2023-06-30 · Updated 2024-11-27

Key facts

Attack vector: Network
Privileges required: High
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

Reflected cross site scripting (XSS) vulnerability was discovered in Sophos Web Appliance v4.3.9.1 that allows for arbitrary code to be inputted via the double quotes.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00577 47th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:sophos:web_appliance:4.3.9.1:::::::*	4.3.9.1	Vulnerable	Sophos

cpe:2.3:a:sophos:web_appliance:4.3.9.1:*:*:*:*:*:*:* Versions 4.3.9.1 Vulnerable ·Sophos

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-33336
2026-10-03 Alias added: GHSA-77xg-4prx-v7j6

References

Other 1

https://inf0seq.github.io/cve/2023/04/30/Cross-site-scripting-%28XSS%29-in-Sophos-Web-Appliance-4.1.1-0.9.html

TI-2023-01568 Command injection in Sophos Web Appliance KEVCVSS 3.1CRITICAL 9.8
TI-2014-02285 The Change Password dialog box (change_password) in Sophos Web Appliance before 3.8.2… CVSS 2.0HIGH 8.5
TI-2014-02286 The network interface configuration page (netinterface) in Sophos Web Appliance before… CVSS 2.0HIGH 8.5
TI-2013-02325 Directory traversal vulnerability in patience.cgi in Sophos Web Appliance before 3.7.8.2… CVSS 2.0MEDIUM 5.0
TI-2017-04046 In Sophos Web Appliance (SWA) before 4.3.1.2, a section of the machine's interface… CVSS 3.0CRITICAL 9.8
TI-2016-07777 The Sophos Web Appliance Remote / Secure Web Gateway server (version 4.2.1.3) is… CVSS 3.0HIGH 7.2

See all 16 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences