CVE-2023-53930

Name: CVE-2023-53930
Creator: NVD / NIST
Published: 2025-12-17T23:15:52.5+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2023-53930 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS 4.0

7.1/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.32%

24.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-639

Affected Software

Vendor	Product	Versions
Projectsend	Projectsend	r1605

References

https://www.exploit-db.com/exploits/51400Exploit, Third Party Advisory
https://www.projectsend.org/Product
https://www.vulncheck.com/advisories/projectsend-insecure-direct-object-reference-file-download-vulnerabilityExploit, Third Party Advisory
https://www.exploit-db.com/exploits/51400Exploit, Third Party Advisory

Timeline

Published: Dec 17, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-53930?

How severe is CVE-2023-53930?

CVE-2023-53930 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2023-53930?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-53930?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST