Stormshield Network Security up to 4.8.19/5.0.9/5.1.3 Captive Portal cross site scripting

Summaryinfo

A vulnerability classified as problematic has been found in Stormshield Network Security up to 4.8.19/5.0.9/5.1.3. The affected element is an unknown function of the component Captive Portal. Performing a manipulation results in cross site scripting. This vulnerability is reported as CVE-2026-113810. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Stormshield Network Security up to 4.8.19/5.0.9/5.1.3. This affects some unknown processing of the component Captive Portal. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

A Stored Cross-Site Scripting vulnerability exists in the SNS enrollment Portal. Through the captive portal an attacker can inject an XSS when requesting certificate creation for user. The stored XSS can only be triggered during validation by the administrator.

It is possible to read the advisory at advisories.stormshield.eu. This vulnerability is uniquely identified as CVE-2026-113810 since 10/20/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 4.8.20 LTSB, 5.0.10 or 5.1.4 EA eliminates this vulnerability.

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Productinfo

Vendor

• Stormshield

Name

• Network Security

Version

• 4.8.0
• 4.8.1
• 4.8.2
• 4.8.3
• 4.8.4
• 4.8.5
• 4.8.6
• 4.8.7
• 4.8.8
• 4.8.9
• 4.8.10
• 4.8.11
• 4.8.12
• 4.8.13
• 4.8.14
• 4.8.15
• 4.8.16
• 4.8.17
• 4.8.18
• 4.8.19
• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 5.0.6
• 5.0.7
• 5.0.8
• 5.0.9
• 5.1.0
• 5.1.1
• 5.1.2
• 5.1.3

CPE 2.3info

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CPE 2.2info

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