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CVE-2026-113808— Stored XSS on SNS Enrollment Portal

Quick assessment

Affected
Stormshield Stormshield Network Security
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

社交网络服务（SNS）注册门户中存在一个存储型跨站脚本（Stored XSS）漏洞。 攻击者可通过强制门户（captive portal）在发起用户创建请求时注入 XSS 攻击。该存储型 XSS 仅在管理员进行验证时才会被触发。

CVSS 7.1 · High

Affected Version Matrix 8

VendorProduct Version RangeStatus
Stormshield Stormshield Network Security 4.3.0≤ 4.3.44 affected
4.8.0≤ 4.8.19 affected
5.0.0≤ 5.0.9 affected
5.1.0≤ 5.1.3 affected
4.3.45 QS unaffected
4.8.20 LTSB unaffected
5.0.10 unaffected
5.1.4 EA unaffected
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I. Basic Information for CVE-2026-113808

Vulnerability Information
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Vulnerability Title
Stored XSS on SNS Enrollment Portal
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Stormshield Stormshield Network Security 4.3.0 ~ 4.3.44 -

II. Public POCs for CVE-2026-113808

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III. Intelligence Information for CVE-2026-113808

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Other References for CVE-2026-113808 (1)

Same Patch Batch · Stormshield · 2026-10-20 · 6 CVEs total

CVE-2026-111090 7.8 HIGH Improper Signature Verification of Firmware Update Files
CVE-2026-113469 7.5 HIGH Improper Signature Verification of Active Update Files
CVE-2026-113810 7.0 HIGH Stored XSS on SNS Enrollment Portal
CVE-2026-113465 6.6 MEDIUM Possible DOM XSS in SNS Web Administration Portal
CVE-2026-111088 6.5 MEDIUM Stored XSS in the VPN logs monitor

IV. Related Vulnerabilities

Same product: Stormshield Network Security
Same vendor: Stormshield
Same weakness: CWE-79

V. Comments for CVE-2026-113808

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