CVE Tools
Sign in

CVE-2021-47942

Home Assistant Community Store 1.10.0 Path Traversal Account Takeover

Published: May 16, 2026Updated: May 27, 2026 Sources: CVE List NVDCWE-22
7.5HIGH
NVD MITRE
EPSS Score
0.5%
Top 61.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

Home Assistant Community Store (HACS) prior to 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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-22

Affected Products

Home Assistant Community Store (HACS)Home-Assistant
On-prem
ICS / OT / IoT / smart-home
home assistant community storehacs
On-prem
Web & CMS Plugins
home-assistantoss-projectICS / OT / IoTaka home assistant, home-assistant.io, homeassistant
hacsoss-projectWeb & CMS Pluginsaka home assistant community store

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://www.exploit-db.com/exploits/49495
exploit-db.com
https://www.home-assistant.io/
home-assistant.io
https://github.com/hacs/integration
github.com
and 1 more references View all →

Timeline

Published
May 16, 2026
Last Updated
May 27, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-47942 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows