High severity · published Oct 20, 2026
CVE-2026-113808
Stored XSS on SNS Enrollment Portal
7.1
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 12% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SN
Stormshield Network Security · Stormshield
4.3.0 through 4.3.44; 4.8.0 through 4.8.19; 5.0.0 through 5.0.9; 5.1.0 through 5.1.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-113808
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-113808
advisories.stormshield.eu
https://advisories.stormshield.eu/2026-026/
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