TI-2026-77007 Aliases CVE-2026-113808 GHSA-wrgg-3rf4-mcjj

Stored cross-site scripting in Stormshield SNS enrollment portal

LOW 33CWE-79Published 2026-10-20 · Updated 2026-10-20

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: Required
Attack complexity: High
Impact type: Cross-site scripting
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

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

Summary

Stormshield Network Security versions from 4.3.0 through 4.3.44, from 4.8.0 through 4.8.19, from 5.0.0 through 5.0.9 and from 5.1.0 through 5.1.3 contain a stored cross-site scripting flaw in the SNS enrollment portal (CWE-79). Through the captive portal, an attacker can inject script when requesting user creation. The stored script runs only when an administrator validates the request.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

A Stored Cross-Site Scripting vulnerability exists in the SNS enrollment Portal. Through the captive portal an attacker can inject an XSS when requesting user creation. The stored XSS can only be triggered during validation by the administrator.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00214 11th percentileScored 2026-11-07

Fix Fixed Stormshield Network Security (Stormshield): 4.3.45 QS, 4.8.20 LTSB, 5.0.10 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

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
Stormshield	Stormshield Network Security	4.3.0 – 4.3.44; 4.8.0 – 4.8.19; 5.0.0 – 5.0.9; 5.1.0 – 5.1.3	4.3.45 QS, 4.8.20 LTSB, 5.0.10, 5.1.4 EA	Patch available	CNA

Stormshield Network Security VendorStormshield Affected 4.3.0 – 4.3.44; 4.8.0 – 4.8.19; 5.0.0 – 5.0.9; 5.1.0 – 5.1.3 Fixed in 4.3.45 QS, 4.8.20 LTSB, 5.0.10, 5.1.4 EA Patch available CNA

Remediation

Upgrade to 4.3.45 QS, 4.8.20 LTSB, 5.0.10 or 5.1.4 EA, which fix the flaw. The sources do not list a vendor advisory identifier for this fix.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Fix · CNA Stormshield Network Security (Stormshield) Fixed in 4.3.45 QS, 4.8.20 LTSB, 5.0.10, 5.1.4 EA

Timeline

2026-10-20 Threatist record created from CVE-2026-113808
2026-10-21 Alias added: GHSA-wrgg-3rf4-mcjj

References

Other 1

https://advisories.stormshield.eu/2026-026/

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See all 68 →

Sources

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