TI-2026-76755 Aliases CVE-2026-113465 GHSA-hfqr-g88q-6m8g

DOM-based XSS in Stormshield web administration portal

LOW 29CWE-79Published 2026-10-20 · Updated 2026-10-20

Key facts

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

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

Summary

Stormshield Network Security versions 5.0.0 through 5.0.9 and 5.1.0 through 5.1.3 are affected. A DOM-based cross-site scripting flaw (CWE-79) in the web administration panel lets an attacker run script in the browser of an authenticated administrator. The attacker must craft a URL with a malicious script in a specific parameter and lure the administrator into opening it. The CVSS vector rates this as network attack with user interaction required.

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

Description from the CNA

It is possible to execute a DOM-based Cross-Site Scripting attack against Stormshield’s web administration panel. To exploit this vulnerability, an attacker would need to craft a URL containing a malicious script payload within a specific parameter and lure an authenticated administrator into visiting that link.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00226 13th percentileScored 2026-11-07

Fix Fixed Stormshield Network Security (Stormshield): 5.0.10, 5.1.4 EA

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
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
Stormshield	Stormshield Network Security	5.0.0 – 5.0.9; 5.1.0 – 5.1.3	5.0.10, 5.1.4 EA	Patch available	CNA

Stormshield Network Security VendorStormshield Affected 5.0.0 – 5.0.9; 5.1.0 – 5.1.3 Fixed in 5.0.10, 5.1.4 EA Patch available CNA

Remediation

Upgrade Stormshield Network Security to version 5.0.10 or 5.1.4 EA, which fix the flaw.

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

Fix · CNA Stormshield Network Security (Stormshield) Fixed in 5.0.10, 5.1.4 EA

Timeline

2026-10-20 Threatist record created from CVE-2026-113465
2026-10-20 Alias added: GHSA-hfqr-g88q-6m8g
2026-10-20 CISA SSVC decision points changed
2026-10-20 Priority changed: MEDIUM → LOW

References

Other 1

https://advisories.stormshield.eu/2026-022/

TI-2022-17498 zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in… CVSS 3.1CRITICAL 9.8
TI-2023-00271 X.400 address type confusion in X.509 GeneralName CVSS 3.1HIGH 7.4
TI-2022-13924 The llhttp parser <v14.20.1, <v16.17.1 and <v18.9.1 in the http module in Node.js does… CVSS 3.1MEDIUM 6.5
TI-2023-06741 Buffer overflow in Cisco Secure Web Appliance CVSS 3.1CRITICAL 9.8
TI-2022-13925 The llhttp parser <v14.20.1, <v16.17.1 and <v18.9.1 in the http module in Node.js does… CVSS 3.1MEDIUM 6.5
TI-2022-04067 Double free after calling PEM_read_bio_ex CVSS 3.1HIGH 7.5

See all 68 →

Sources

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