PT-2025-52717 · Unknown · Projectsend

Mirabbas Ağalarov · Published 2025-12-22 · Updated 2025-12-26 · CVE-2023-53980

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions ProjectSend version r1605

Description ProjectSend r1605 contains a remote code execution issue 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. The issue bypasses file extension checks, enabling attackers to upload and execute malicious scripts, potentially leading to complete server compromise.

Recommendations For ProjectSend version r1605, restrict access to the upload.process.php endpoint to prevent unauthorized file uploads. As a temporary workaround, consider disabling file upload functionality until a patch is available.

Exploit

Fix

RCE

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2023-53980

Affected Products

Projectsend

References · 13

• 🔥 https://exploit-db.com/exploits/51238 · Exploit
• 🔥 https://vulncheck.com/advisories/projectsend-remote-code-execution-via-file-extension-manipulation · Exploit
• https://osv.dev/vulnerability/CVE-2023-53980 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53980 · Security Note
• https://twitter.com/TheHackerWire/status/2003250172365590913 · Twitter Post
• https://twitter.com/j0ltglacier/status/2003559008276480072 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2003267870067757481 · Twitter Post
• https://twitter.com/j0ltglacier/status/2003558490728714451 · Twitter Post
• https://t.me/CVEtracker/40448 · Telegram Post
• https://twitter.com/CveFindCom/status/2003233921022967956 · Twitter Post
• https://twitter.com/CVEnew/status/2003233938526077173 · Twitter Post
• https://t.me/cveNotify/146888 · Telegram Post
• https://projectsend.org · Note