CVE-2026-80233: high-severity vulnerability in CAYIN CMS-WS
CAYIN Technology｜CAYIN CMS-WS/CMS-SE/SMP - Arbitrary File Upload
Published
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.6epss 0.8%
exploitation probability
0.8%top 44% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
CAYIN Technology · CAYIN CMS-SECAYIN Technology · CAYIN CMS-WSCAYIN Technology · CAYIN SMPRelated CVEs — CAYIN CMS-WS
In the same product, most dangerous first.