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CVE-2026-75599— HomeBox: Stored XSS via `javascript:` URI in Custom Entity Fields

Quick assessment

Affected
sysadminsmedia homebox
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.

HomeBox 是一个家庭库存与组织管理系统。在 0.27.0 版本之前，其 maybeUrl() 工具函数允许在实体的自定义字段值中存储 Markdown 风格的链接，且未对 URL 协议（scheme）进行限制。因此，已认证用户可以存储以 javascript: 开头的 URI，该 URI 会在物品页面上渲染为可点击的超链接。当另一名已认证用户点击该链接时，攻击者控制的 JavaScript 代码将在受害者的 HomeBox 同源环境中执行，从而导致会话窃取、账户接管或数据泄露。此问题已在 0.27.0 版本中

CVSS 5.4 · Medium
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I. Basic Information for CVE-2026-75599

Vulnerability Information
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Vulnerability Title
HomeBox: Stored XSS via `javascript:` URI in Custom Entity Fields
Source: CVE Program / CVE List V5
Vulnerability Description
HomeBox is a home inventory and organization system. Prior to 0.27.0, the maybeUrl() utility accepts markdown-style links in entity custom-field values without restricting the URL scheme, so an authenticated user can store a javascript: URI that is rendered as a clickable anchor on an item page. When another authenticated user clicks the link, attacker-controlled JavaScript executes in the victim's HomeBox origin, enabling session theft, account takeover, or data exfiltration. This issue is fixed in version 0.27.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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

Vendor Product Affected Versions CPE Subscribe
sysadminsmedia homebox < 0.27.0 -

II. Public POCs for CVE-2026-75599

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III. Intelligence Information for CVE-2026-75599

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Other References for CVE-2026-75599 (2)

Same Patch Batch · sysadminsmedia · 2026-11-05 · 3 CVEs total

CVE-2026-85287 6.5 MEDIUM HomeBox: Email Case-Sensitivity Bypass Allows Duplicate Account Creation and Login Denial
CVE-2026-85286 3.7 LOW HomeBox: Timing Side-Channel in Login Endpoint Allows User Enumeration via Bcrypt Hashing

IV. Related Vulnerabilities

Same product: homebox
Same vendor: sysadminsmedia
Same weakness: CWE-79