CVE-2021-47942— Home Assistant Community Store 1.10.0 Path Traversal Account Takeover
Possible ATT&CK Techniques 3AI
T1552 · Unsecured Credentials T1078 · Valid Accounts T1083 · File and Directory DiscoveryAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Home-Assistant | Home Assistant Community Store (HACS) | < 1.10.0 | affected |
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I. Basic Information for CVE-2021-47942
Vulnerability Information
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Vulnerability Title
Home Assistant Community Store 1.10.0 Path Traversal Account Takeover
Source: NVD (National Vulnerability Database)
Vulnerability Description
Home Assistant Community Store (HACS) 1.10.0 contains a path traversal vulnerability that allows unauthenticated attackers to read sensitive files by traversing directories via the /hacsfiles/ endpoint. Attackers can retrieve the .storage/auth file containing user credentials and refresh tokens, then craft valid JWT tokens to gain administrative access to Home Assistant instances.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Home-Assistant | Home Assistant Community Store (HACS) | 0 ~ 1.10.0 | - |
II. Public POCs for CVE-2021-47942
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
Qwen3.6-35B-A3B · 7853 chars
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III. Intelligence Information for CVE-2021-47942
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IV. Related Vulnerabilities
Same vendor: Home-Assistant
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Home Assistant has stored XSS in Map-card through malicious - CVE-2025-62172
Home Assistant vulnerable to Stored XSS in Energy dashboard - CVE-2025-25305
SSL validation for outgoing requests in Home Assistant Core
Same weakness: CWE-22
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Open WebUI: Open WebUI Arbitrary File Write, Delete via Path - CVE-2026-44566
Open WebUI: Arbitrary File Upload and Path Traversal - CVE-2026-46383
Microsoft APM: Windows absolute-path tar member overwrite du
V. Comments for CVE-2021-47942
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