CVE-2023-53980
ProjectSend r1605 Remote Code Execution via File Extension Manipulation
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.
INFO
Published Date :
Dec. 22, 2025, 10:16 p.m.
Last Modified :
Dec. 26, 2025, 3:40 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | CRITICAL | MITRE-CVE | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Validate file extensions on the server-side.
- Configure allowed file types for uploads.
- Update to a version that patches this vulnerability.
- Review upload processing logic.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-53980.
| URL | Resource |
|---|---|
| https://www.exploit-db.com/exploits/51238 | Exploit Third Party Advisory |
| https://www.projectsend.org/ | Product |
| https://www.vulncheck.com/advisories/projectsend-remote-code-execution-via-file-extension-manipulation | Third Party Advisory Exploit |
| https://www.exploit-db.com/exploits/51238 | Exploit Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-53980 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-53980
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-53980 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-53980 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Dec. 26, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:projectsend:projectsend:r1605:*:*:*:*:*:*:* Added Reference Type CISA-ADP: https://www.exploit-db.com/exploits/51238 Types: Exploit, Third Party Advisory Added Reference Type VulnCheck: https://www.exploit-db.com/exploits/51238 Types: Exploit, Third Party Advisory Added Reference Type VulnCheck: https://www.projectsend.org/ Types: Product Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/projectsend-remote-code-execution-via-file-extension-manipulation Types: Exploit, Third Party Advisory -
New CVE Received by [email protected]
Dec. 22, 2025
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-434 Added Reference https://www.exploit-db.com/exploits/51238 Added Reference https://www.projectsend.org/ Added Reference https://www.vulncheck.com/advisories/projectsend-remote-code-execution-via-file-extension-manipulation -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Dec. 22, 2025
Action Type Old Value New Value Added Reference https://www.exploit-db.com/exploits/51238