CVE-2026-7429— SSCMS v7.4.0 Reflected Cross-Site Scripting via STL Processing
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I. Basic Information for CVE-2026-7429
Vulnerability Information
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Vulnerability Title
SSCMS v7.4.0 Reflected Cross-Site Scripting via STL Processing
Source: NVD (National Vulnerability Database)
Vulnerability Description
SSCMS v7.4.0 contains a reflected cross-site scripting vulnerability in the STL processing endpoint that allows attackers to execute arbitrary JavaScript by crafting malicious STL template payloads that are decrypted and returned without proper sanitization. Attackers can exploit improper output encoding in the /api/stl/actions/dynamic endpoint to inject executable JavaScript into JSON responses, leading to session hijacking, phishing attacks, and unauthorized actions performed on behalf of users.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
SSCMS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SSCMS（SiteServerCMS）是中国百容千域（SSCMS）公司的一个内容管理系统。 SSCMS 7.4.0版本存在跨站脚本漏洞，该漏洞源于STL处理端点中反射型跨站脚本问题，可能导致攻击者通过特制STL模板有效载荷注入可执行JavaScript，导致会话劫持、钓鱼攻击和代表用户执行未授权操作。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| siteserver | SSCMS | 7.4.0 | - |
II. Public POCs for CVE-2026-7429
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same weakness: CWE-79
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Devs Palace ERP Online sales_save cross site scripting - CVE-2026-8253
Devs Palace ERP Online purchase_save cross site scripting
V. Comments for CVE-2026-7429
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