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CVE-2023-53930

ProjectSend r1605 Insecure Direct Object Reference File Download Vulnerability

Published: Dec 17, 2025Updated: Dec 27, 2025 Sources: CVE List NVDCWE-639
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.3%
Top 76.2%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-639

Affected Products

projectSendprojectSend
On-prem
Enterprise Software / collaboration-groupware
projectsendprojectsend
On-prem
Enterprise Software / collaboration-groupware
projectsendoss-projectEnterprise Softwareaka projects end, projectsend/projectsend

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

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MITRE ATT&CK

1 technique
Initial Access
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References

https://www.exploit-db.com/exploits/51400
exploit-db.com
https://www.projectsend.org/
projectsend.org
https://www.vulncheck.com/advisories/projectsend-insecure-direct-object-reference-file-download-vulnerability
vulncheck.com

Timeline

Published
Dec 17, 2025
Last Updated
Dec 27, 2025

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