Vulnerability · Published Dec 17, 2025 · Assigned by VulnCheck
CVE-2023-53930ProjectSend r1605 Insecure Direct Object Reference File Download Vulnerability
High 7.5
In plain English
A high-severity authorization bypass via user-controlled key in projectSend from projectSend. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 67.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| projectSend | projectSend | r1605 |
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- ExploitDB-51400 exploit
- Official Product Homepage product
- VulnCheck Advisory: ProjectSend r1605 Insecure Direct Object Reference File Download Vulnerability third-party-advisory