Remote Code Execution Vulnerability in ProjectSend Auth Component
CVE-2026-4045

6.3MEDIUM

Key Information:

Vendor

ProjectSend

Status
Projectsend
Vendor
CVE Published:
12 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-4045?

A security vulnerability exists in ProjectSend affecting versions up to r1945, specifically in the Auth.php file. This flaw allows for the manipulation of the ldap_email argument, which can cause discrepancies in the application's responses. An attacker may exploit this issue remotely, although the complexity of the attack is considered high. Security experts have noted that exploiting this vulnerability is difficult, yet the potential risks are significant, as published exploits could be utilized. Despite early notification to the vendor, no response has been received regarding this critical disclosure.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

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-2026-4045 - Proof of Concept

References

https://vuldb.com/?id.350657
vdb-entrytechnical-description
https://vuldb.com/?ctiid.350657
signaturepermissions-required
https://vuldb.com/?submit.769577
third-party-advisory

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
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
.