Medium severity · published Oct 20, 2026
CVE-2026-111088
Stored XSS in the VPN logs monitor
6.5
CVSS
0.2%
EPSS
No
On KEV
Description
A Stored Cross-Site Scripting vulnerability exists in the SNS VPN log monitoring screen.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
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-2026-111088
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-111088
advisories.stormshield.eu
https://advisories.stormshield.eu/2026-030/
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