CVE-2021-26740: Doyocms Project Doyocms

Critical severity, CVSS 9.8. EPSS: 1.6% chance of exploitation in the next 30 days.

Arbitrary file upload vulnerability sysupload.php in millken doyocms 2.3 allows attackers to execute arbitrary code.

Affected products

• Doyocms Project Doyocms: version 2.3 only

Published 2021-11-01. Last modified 2026-06-17.