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

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0004.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Projectsend Subscribe
Projectsend Subscribe

Configuration 1 [-]

cpe:2.3:a:projectsend:projectsend:r1605:*:*:*:*:*:*:*

No data.

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Vendors Products
Projectsend Subscribe
Projectsend Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.exploit-db.com/exploits/51400 cve-icon cve-icon cve-icon
https://www.projectsend.org/ cve-icon cve-icon
https://www.vulncheck.com/advisories/projectsend-insecure-direct-object-reference-file-download-vulnerability cve-icon cve-icon
History

Sat, 27 Dec 2025 17:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

 cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Fri, 26 Dec 2025 16:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:projectsend:projectsend:r1605:*:*:*:*:*:*:*

Thu, 18 Dec 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 18 Dec 2025 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Projectsend
Projectsend projectsend
Vendors & Products Projectsend
Projectsend projectsend

Wed, 17 Dec 2025 23:00:00 +0000

Type Values Removed Values Added
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.
Title ProjectSend r1605 Insecure Direct Object Reference File Download Vulnerability
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.1, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2025-12-30T14:09:11.380Z

Reserved: 2025-12-16T19:22:09.996Z

Link: CVE-2023-53930

cve-icon Vulnrichment

Updated: 2025-12-18T14:47:55.632Z

cve-icon NVD

Status : Modified

Published: 2025-12-17T23:15:52.500

Modified: 2025-12-27T17:15:44.510

Link: CVE-2023-53930

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-12-18T09:56:20Z

Weaknesses