CVE-2026-80233
Medium
Elevated severity or exploit probability.
CVSS base
7.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.8%
55.4th percentile
CISA KEV
Not listed
Weakness / dates
CWE-434
Published 2026-08-26 · modified 2026-08-26
Description
CAYIN CMS-WS, CMS-SE, and SMP series products developed by CAYIN Technology have an Arbitrary File Upload vulnerability. Privileged remote attackers can upload and execute web shells backdoors, thereby enabling arbitrary code execution on the server.