ProjectSend r1605 Insecure Direct Object Reference File Download Vulnerability
Priority MEDIUM 64CWE-639Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00383 32nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ProjectSend | projectSend | r1605 | — | No fix listed | CNA |
- projectSend VendorProjectSend Affected r1605 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:projectsend:projectsend:r1605:*:*:*:*:*:*:* | r1605 | Vulnerable | ProjectSend |
- cpe:2.3:a:projectsend:projectsend:r1605:*:*:*:*:*:*:* Versions r1605 Vulnerable ·ProjectSend
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-53930
- 2026-10-03 Alias added: GHSA-gc6r-xc3x-9vvg
References
Exploit 1
Other 1
More Projectsend vulnerabilities
- TI-2024-10826 ProjectSend Unauthenticated Configuration Modification KEVCVSS 3.1CRITICAL 9.8
- TI-2023-30263 ProjectSend r1605 Remote Code Execution via File Extension Manipulation CVSS 4.0HIGH 8.7
- TI-2014-07764 Unrestricted file upload vulnerability in process-upload.php in ProjectSend (formerly… CVSS 2.0HIGH 7.5
- TI-2023-30188 ProjectSend r1605 CSV Injection via User Account Export Functionality CVSS 4.0MEDIUM 6.2
- TI-2017-14167 ProjectSend information disclosure CVSS 3.1MEDIUM 5.7
- TI-2023-00574 Cross-site Scripting (XSS) - Stored in projectsend/projectsend CVSS 3.1MEDIUM 4.8
Sources
- CVE-2023-53930 · CVE Program
- CVE-2023-53930 · NVD
- FIRST EPSS
- GHSA-gc6r-xc3x-9vvg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences