CVE-2021-47942 — HIGH (7.5)

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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Related Weaknesses (CWE)

CWE-22

References

FAQ

What is CVE-2021-47942?

CVE-2021-47942 is a vulnerability with a CVSS score of 7.5 (HIGH). 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/ endpoin...

How severe is CVE-2021-47942?

CVE-2021-47942 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-47942?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.