CVE-2022-45966
CWE-434Published: December 22, 2022· Updated: Jun 17, 2026
Official Description
here is an arbitrary file upload vulnerability in the file management function module of Classcms3.5.
Risk Analysis
Classcms 3.5 contains an arbitrary file upload vulnerability within its file management module. This critical flaw allows remote attackers to upload malicious files, potentially leading to full system compromise.
No public exploits are known, and this vulnerability is not included in CISA's KEV list.
Upgrade to a version of Classcms that addresses this file upload vulnerability.
Technical Analysis
CVE-2022-45966 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-2022-45966 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts