CVE-2023-53930

ProjectSend r1605 Insecure Direct Object Reference File Download Vulnerability

State: Published
Severity: 7.1 High
Published: Dec 17, 2025
Updated: Apr 7, 2026
Reserved: Dec 16, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	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	VulnCheck
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	VulnCheck

Weaknesses

CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

Product	Versions
projectSendprojectSend	r1605Affected

References

ExploitDB-51400exploit
Official Product Homepageproduct
VulnCheck Advisory: ProjectSend r1605 Insecure Direct Object Reference File Download Vulnerabilitythird-party-advisory

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