CVE-2026-4045 Details
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.
A vulnerability allowing LDAP injection has been identified in ProjectSend versions up to r1945. This issue resides in the file includes/Classes/Auth.php, specifically within the loginLdap() function. The vulnerability arises because the ldap_email parameter is directly inserted into an LDAP search filter without proper sanitization. This flaw enables an attacker to manipulate the filter by adding wildcard characters, creating a response discrepancy that can be exploited for email enumeration. The attack can be executed remotely and does not require authentication.
It is recommended to sanitize the ldap_email input using ldap_escape() before it is used in the ldap_search() function. However, as of now, there is no official patch or mitigation available.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Mar 12, 2026CISA-ADP
Assessed Mar 12, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://drive.google.com/file/d/1TNwWNTcra2ykx0yXpATPmsPgJxIxOrWb/view?usp=sharing | [email protected] | ExploitTechnical Description |
| https://vuldb.com/?ctiid.350657 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/?id.350657 | [email protected] | AdvisoryExploitPartial Content |
| https://vuldb.com/?submit.769577 | [email protected] | ExploitTechnical Description |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-203 | Observable Discrepancy | [email protected] |
| CWE-204 | Observable Response Discrepancy | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ProjectSend | <= r1945 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Mar 12, 2026 | New CVE Received | [email protected] |