CVE-2026-86550— UXSS vulnerability in ZTE browser products
Quick assessment
Affected
ZTE NebulaOS
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.
NuBrowser 对 的 字段缺少协议白名单校验，允许攻击者通过 302 重定向注入 开头的 URL。由此引发通用的跨站脚本执行（UXSS）漏洞，使得攻击者可以在任意网站的源（origin）内执行脚本。
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I. Basic Information for CVE-2026-86550
Vulnerability Information
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Vulnerability Title
UXSS vulnerability in ZTE browser products
Source: CVE Program / CVE List V5
Vulnerability Description
NuBrowser lacks protocol whitelist validation for the S.browser_fallback_url field of intent://, allowing attackers to inject javascript: URLs via 302 redirects. This results in a universal cross‑site scripting (UXSS) vulnerability that enables script execution within the origin of arbitrary websites.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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
II. Public POCs for CVE-2026-86550
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-86550 (1)
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V. Comments for CVE-2026-86550
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