What’s Vulnerable › Vulnerabilities

CVE-2023-53980: ProjectSend r1605 Remote Code Execution via File Extension Manipulation

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-12-22 · updated 2026-06-17
• Weakness: CWE-434

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.

Affected products

• ProjectSend: r1605

References

• https://www.exploit-db.com/exploits/51238
• https://www.projectsend.org/
• https://www.vulncheck.com/advisories/projectsend-remote-code-execution-via-file-extension-manipulation
• https://www.exploit-db.com/exploits/51238

Get alerted when CVE-2023-53980 or the next vulnerability affects your stack