Insecure Direct Object Reference in ProjectSend Affects File Security
CVE-2023-53930

7.1HIGH

Key Information:

Vendor

Projectsend

Status
Projectsend
Vendor
CVE Published:
17 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2023-53930?

ProjectSend version r1605 is affected by an insecure direct object reference vulnerability that enables unauthenticated attackers to download private files. By manipulating the 'id' parameter in the download request to process.php, attackers can gain unauthorized access to any user's private files, leading to potential data breaches and compromising user privacy. Organizations using affected versions should promptly review their security posture and implement necessary controls to mitigate this risk.

Affected Version(s)

projectSend r1605

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-53930 - Proof of Concept

References

https://www.exploit-db.com/exploits/51400
exploit
https://www.projectsend.org/
product
https://www.vulncheck.com/advisories/projectsend-insecure...
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mirabbas Ağalarov
JSON
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CVE-2023-53930 : Insecure Direct Object Reference in ProjectSend Affects File Security