CVE-2023-53930: ProjectSend

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

ProjectSend r1605 contains an insecure direct object reference vulnerability that allows unauthenticated attackers to download private files by manipulating the download ID parameter. Attackers can access any user's private files by changing the 'id' parameter in the download request to process.php.

Affected products

• ProjectSend ProjectSend: version r1605 only

Published 2025-12-17. Last modified 2026-06-17.