Possible reflected XSS on login API
| Advisory ID | CVE Number | Date discovered | Severity | Advisory revision |
|---|---|---|---|---|
| STORM-2026-003 | CVE-2026-8474 | 01/13/2026 | medium | v2 |
Vulnerability details
It’s possible to run a Cross Site Scripting request on the login API available on Stormshield SNS appliances.
Impacted products
| Products | Severity | Detail |
|---|---|---|
| Stormshield Network Security | medium | SNS is Impacted |
Revisions
| Version | Date | Description |
|---|---|---|
| v1 | 02/19/2026 | Initial release |
| v2 | 05/21/2026 | Published as disclosed |
Stormshield Network Security |
CVSS v3.1 Overall Score: 4.8
|
Analysis |
Impacted version |
|
It’s possible to run a Cross Site Scripting request on the login API available on Stormshield SNS appliances. |
|
Workaround solution |
Solution |
|
There is no workaround solution. |
The following updates will fix this vulnerability:
|
| Attack Vector | Attack Complexity | Privileges Required | User Interaction | Scope | Confidentiality Impact | Integrity Impact | Availability impact |
|---|---|---|---|---|---|---|---|
| Network | Low | None | None | Unchanged | None | Low | None |
| CVSS Base score: 5.3 | CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) |
| Exploit Code Maturity | Remediation Level | Report Confidence |
|---|---|---|
| Proof of concept code | Official fix | Confirmed |
| CVSS Temporal score: 4.8 | CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C) |
| Confidentiality Requirement (CR) | Integrity Requirement (IR) | Availability Requirement (AR) |
|---|---|---|
| Medium | Medium | Medium |
| CVSS Environmental score: 4.8 | CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C/CR:M/IR:M/AR:M/MAV:X/MAC:X/MPR:X/MUI:X/MS:X/MC:X/MI:X/MA:X) |