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I. Basic Information for CVE-2026-26266
Vulnerability Information

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Vulnerability Title
AliasVault affected by Cross-Site Scripting (XSS) via Email HTML Rendering
Source: NVD (National Vulnerability Database)
Vulnerability Description
AliasVault is a privacy-first password manager with built-in email aliasing. A stored cross-site scripting (XSS) vulnerability was identified in the email rendering feature of AliasVault Web Client versions 0.25.3 and lower. When viewing received emails on an alias, the HTML content is rendered in an iframe using srcdoc, which does not provide origin isolation. An attacker can send a crafted email containing malicious JavaScript to any AliasVault email alias. When the victim views the email in the web client, the script executes in the same origin as the application. No sanitization or sandboxing was applied to email HTML content before rendering. This vulnerability is fixed in 0.26.0.[
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/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
AliasVault 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AliasVault是AliasVault开源的一个密码管理器。 AliasVault 0.25.3及之前版本存在跨站脚本漏洞,该漏洞源于电子邮件渲染功能中,HTML内容在iframe中使用srcdoc渲染且未提供源隔离,可能导致存储型跨站脚本攻击。
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
VendorProductAffected VersionsCPESubscribe
aliasvaultaliasvault < 0.26.0 -
II. Public POCs for CVE-2026-26266
#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
kimi-k2.5 · 8493 chars
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III. Intelligence Information for CVE-2026-26266
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IV. Related Vulnerabilities
V. Comments for CVE-2026-26266

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