CVE-2022-46493
CWE-434Published: December 22, 2022· Updated: Jun 17, 2026
Official Description
Default version of nbnbk was discovered to contain an arbitrary file upload vulnerability via the component /api/User/download_img.
Risk Analysis
This vulnerability allows for arbitrary file uploads via the nbnbk API. Given the critical CVSS score of 9.8, this flaw poses a severe risk as it is remotely exploitable without authentication.
There is no known public exploit for this vulnerability, and it is not listed in the CISA KEV catalog.
Users should apply available patches for the nbnbk project and restrict access to the API endpoint.
Technical Analysis
CVE-2022-46493 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-434)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-46493 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts