CVE-2023-53980

8.7 highEPSS 0.9%

High (8.7) in projectsend projectsend. EPSS 0.9% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

8.7 high

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2025-12-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

projectsend:projectsend

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

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