What is CVE-2023-53930?

CVE-2023-53930 is a high-severity vulnerability in Projectsend, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2025-12-17.

How severe is CVE-2023-53930?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Projectsend

CVE-2023-53930

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 changi…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.001 (20.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Projectsend — versions r1605

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

ExploitDB-51400 (exploit)
Official Product Homepage (product)
VulnCheck Advisory: ProjectSend r1605 Insecure Direct Object Reference File Download Vulnerability (third-party-advisory)

Frequently asked questions

What is CVE-2023-53930?: CVE-2023-53930 is a high-severity vulnerability in Projectsend, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2025-12-17.
How severe is CVE-2023-53930?: High severity. CVSS v3 base score is 7.5 out of 10.