Description
An arbitrary file upload vulnerability in the /v1/app/appendFileSync interface of Jan v0.4.12 allows attackers to execute arbitrary code via uploading a crafted file.
References (1)
Core 1
Core References
Exploit, Third Party Advisory
https://github.com/HackAllSec/CVEs/tree/main/Jan%20Arbitrary%20File%20Upload%20vulnerability
Scores
CVSS v3
9.8
EPSS
0.0114
EPSS Percentile
78.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
total
Details
CWE
CWE-434
CWE-94
Status
published
Products (2)
homebrew/jan
0.4.12
janhq/core
0npm
Published
Jun 04, 2024
Tracked Since
Feb 18, 2026