Path Traversal Vulnerability in ProjectSend Delete Handler
CVE-2026-4044

5.1MEDIUM

Key Information:

Vendor

ProjectSend

Status
Projectsend
Vendor
CVE Published:
12 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-4044?

A vulnerability in ProjectSend, specifically within the Delete Handler component's realpath function in the import-orphans.php file, allows for a path traversal exploit. By manipulating the argument files[], an attacker may gain unauthorized access to files on the server. This issue became public, with the potential for remote exploitation, heightening the urgency for users to address this vulnerability. Despite the early notification to the vendor regarding this flaw, no response has been received, indicating a need for immediate attention from affected users.

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Affected Version(s)

projectsend r1945

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-4044 - Proof of Concept

References

https://vuldb.com/?id.350656
vdb-entrytechnical-description
https://vuldb.com/?ctiid.350656
signaturepermissions-required
https://vuldb.com/?submit.769528
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

0xNayel (VulDB User)
VulDB
JSON
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