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TI-2016-08330 Aliases CVE-2016-10256GHSA-jvp2-whwq-j6fc

Cross-site scripting in Symantec ProxySG

Priority LOW 30CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

The Symantec ProxySG 6.5 (prior to 6.5.10.6), 6.6, and 6.7 (prior to 6.7.2.1) management console is susceptible to a reflected XSS vulnerability. A remote attacker can use a crafted management console URL in a phishing attack to inject arbitrary JavaScript code into the management console web client application. This is a separate vulnerability from CVE-2016-10257.

Why it matters now

EPSS 0.01473 73rd percentileScored 2026-11-07
Fix Fixed ProxySG (Symantec Corporation): 6.5.10.6, 6.7.2.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
SymantecProxySG6.5 to before 6.5.10.6; 6.6; 6.7 to before 6.7.2.16.5.10.6, 6.7.2.1Patch availableCNA
  • ProxySG VendorSymantec Affected 6.5 to before 6.5.10.6; 6.6; 6.7 to before 6.7.2.1 Fixed in 6.5.10.6, 6.7.2.1 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:broadcom:symantec_proxysg:*:*:*:*:*:*:*:*6.5 to before 6.5.10.6; 6.7 to before 6.7.2.1VulnerableBroadcom
cpe:2.3:a:broadcom:symantec_proxysg:6.6:*:*:*:*:*:*:*6.6VulnerableBroadcom
  • cpe:2.3:a:broadcom:symantec_proxysg:*:*:*:*:*:*:*:* Versions 6.5 to before 6.5.10.6; 6.7 to before 6.7.2.1 Vulnerable ·Broadcom
  • cpe:2.3:a:broadcom:symantec_proxysg:6.6:*:*:*:*:*:*:* Versions 6.6 Vulnerable ·Broadcom

Remediation

  • Fix · CNA ProxySG (Symantec Corporation) Fixed in 6.5.10.6, 6.7.2.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-10256
  2. 2026-10-03 Alias added: GHSA-jvp2-whwq-j6fc

References

Advisory 1

  • TI-2017-04157 Command injection in Symantec Messaging Gateway KEVCVSS 3.1HIGH 8.8
  • TI-2009-01353 The Intel LANDesk Common Base Agent (CBA) in Symantec Alert Management System 2 (AMS2)… CVSS 2.0HIGH 10.0
  • TI-2017-04156 The Symantec Messaging Gateway can encounter an issue of remote code execution, which… CVSS 3.0CRITICAL 10.0
  • TI-2012-00284 The management GUI in Symantec Web Gateway 5.0.x before 5.0.3 does not properly restrict… CVSS 2.0HIGH 10.0
  • TI-2006-02539 Stack-based buffer overflow in Symantec Antivirus 10.1 and Client Security 3.1 allows… CVSS 2.0HIGH 10.0
  • TI-2012-02563 The management console in Symantec Web Gateway 5.0.x before 5.0.3.18 allows remote… CVSS 2.0HIGH 10.0
See all 597 →

Sources

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