CVE-2023-53980
CWE-434Published: December 22, 2025· Updated: Jun 17, 2026
Official Description
ProjectSend r1605 contains a remote code execution vulnerability that allows attackers to upload malicious files by manipulating file extensions. Attackers can upload shell scripts with disguised extensions through the upload.process.php endpoint to execute arbitrary commands on the server.
Risk Analysis
ProjectSend contains a remote code execution vulnerability due to improper file extension validation during uploads. Attackers can upload malicious shell scripts to execute arbitrary commands on the server.
No public exploit is known, and it is not in the CISA KEV. The vulnerability is remotely exploitable.
Upgrade to a version of ProjectSend that implements strict file extension validation and restricts execution permissions in the upload directory.
Technical Analysis
CVE-2023-53980 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (4)
Quick Facts
Related CVEs (CWE-434)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-53980 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts