Stored XSS in Stormshield's Web Administration Panel
CVE-2026-14466

4.3MEDIUM

Key Information:

Vendor

Stormshield

Status
Stormshield Network Security
Vendor
CVE Published:
4 September 2026

What is CVE-2026-14466?

A stored XSS vulnerability exists in the web administration panel of Stormshield, allowing an attacker with administrator permissions to inject malicious scripts into group comments. This could potentially lead to unauthorized access and manipulation of web services by executing scripts in the context of legitimate users.

Affected Version(s)

Stormshield Network Security 4.8.0 <= 4.8.16

Stormshield Network Security 5.0.0 <= 5.0.6

Stormshield Network Security 4.8.17

References

https://advisories.stormshield.eu/2026-006

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

We acknowledge the researcher Supr4s for discovering this vulnerability.
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