CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Called exploited the same day it was disclosed.
Measured from the CVE publication date to the earliest of 1 KEV catalogue that list it.
The life of this vulnerability
- CVE published
- First KEV listingsame day
- Last sighting58d
Gaps are compressed to equal steps. The elapsed time is printed under each.
Which catalogues call it exploited
- CISA KEVUS federaldoes not list it
- EUVDENISA, European Uniondoes not list it
- VulnCheck KEVcommercial researchlisted Jul 2, 2026
- CIRCLaggregator, mirrors the abovelisted Aug 17, 2026, not counted
This rests on a single catalogue. No second catalogue corroborates the claim that it is being exploited. CIRCL is an aggregator and is not counted.
Public exploitation evidence
- reported exploitationdashboard.shadowserver.org/statistics/honeypot/vulnerability
- reported exploitationdashboard.shadowserver.org/statistics/honeypot/vulnerability
- reported exploitationprevidian.com/CVE-2022-50973
- reported exploitationwww.cve.org/CVERecord?id=CVE-2022-50973
4 public reports collected from VulnCheck and CIRCL, first on Jul 2, 2026. Each links to its original source. We have not verified them.
Description
Yonyou KSOA 9.0 contains an unauthenticated arbitrary file upload vulnerability in the com.sksoft.bill.ImageUpload servlet that allows unauthenticated attackers to upload arbitrary files by submitting a POST request with attacker-controlled filepath and filename parameters without any authentication, file type, extension, or content validation. Attackers can upload a JSP webshell by specifying a malicious filename and root filepath, with the uploaded file stored under the pictures directory and directly executed by the web server, resulting in unauthenticated remote code execution. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-11-07 (UTC).