Vulnerability · Published Mar 12, 2026 · Assigned by VulDB

CVE-2026-4045projectsend Auth.php response discrepancy

Low 3.7

In plain English

A low-severity security flaw in projectsend. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).

Severity (CVSS 3.1)3.7Low

Exploit odds (30 days)0.3%top 77.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A flaw has been found in projectsend up to r1945. This impacts an unknown function of the file includes/Classes/Auth.php. Executing a manipulation of the argument ldap_email can lead to observable response discrepancy. The attack can be executed remotely. A high complexity level is associated with this attack. The exploitability is said to be difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
n/a	projectsend	r1945

Weakness: CWE-204, CWE-203 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R

References

VDB-350657 | projectsend Auth.php response discrepancy vdb-entry, technical-description
VDB-350657 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #769577 | projectsend 35dfd6f08f7d517709c77ee73e57367141107e6b LDAP Injection third-party-advisory
https://drive.google.com/file/d/1TNwWNTcra2ykx0yXpATPmsPgJxIxOrWb/view?usp=sharing exploit