CVE-2023-5223: Hdoi Hcode Online Judge

Critical severity, CVSS 9.9. EPSS: 1% chance of exploitation in the next 30 days.

A vulnerability, which was classified as critical, has been found in HimitZH HOJ up to 4.6-9a65e3f. This issue affects some unknown processing of the component Topic Handler. The manipulation leads to sandbox issue. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-240365 was assigned to this vulnerability.

Affected products

• Hdoi Hcode Online Judge: version 4.6-9a65e3f only

Published 2023-09-27. Last modified 2026-06-17.