Javascript XSS in disclaimer

Advisory ID CVE Number Date discovered Severity Advisory revision
STORM-2023-020 CVE-2023-41165 05/10/2023 low v1

Vulnerability details

A user who has write access to the SNS has the ability to insert a login disclaimer containing malicious JavaScript.

Impacted products

Stormshield Network Security low SNS is impacted


Version Date Description
v1 07/28/2023 Initial release
v2 10/24/2023 Public release

Stormshield Network Security

CVSS v3.1 Overall Score: 1.8      


Impacted version

The login page of the SNS administration can interpret JavaScript code. A user with write access to the SNS can include a disclaimer containing malicious JavaScript.

  • SNS 3.7.0 to 3.7.38
  • SNS 3.10.0 to 3.11.26
  • SNS 4.0 to 4.3.21
  • SNS 4.4.0 to 4.6.8

Workaround solution


If there is no login disclaimer configured, the SNS remains unaffected. However, if a disclaimer is configured, make sure it does not contain any JavaScript code.

The following versions fix this vulnerability

  • 3.7.39
  • 3.11.27
  • 4.3.22
  • 4.6.9

Attack Vector Attack Complexity Privileges Required User Interaction Scope Confidentiality Impact Integrity Impact Availability impact
Local Low High Required Unchanged Low None None
CVSS Base score: 2 CVSS Vector: (AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N)
Exploit Code Maturity Remediation Level Report Confidence
Proof of concept code Official fix Confirmed
CVSS Temporal score: 1.8 CVSS Vector: (AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C)
Confidentiality Requirement Integrity Requirement Availability Requirement
Medium Low Low
CVSS Environmental score: 1.8 CVSS Vector: (AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C/CR:M/IR:L/AR:L/MAV:X/MAC:X/MPR:X/MUI:X/MS:X/MC:X/MI:X/MA:X)