Vulnerability in Projectsend
CVE-2026-4045
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (36.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002
Affected products
- Projectsend — versions r1945
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- drive.google.com/file/d/1TNwWNTcra2ykx0yXpATPmsPgJxIxOrWb/view (exploit)
Frequently asked questions
- What is CVE-2026-4045?
- CVE-2026-4045 is a low-severity vulnerability in Projectsend, classified under Observable Discrepancy. CVSS score: 3.7/10. Published 2026-03-12.
- How severe is CVE-2026-4045?
- Low severity. CVSS v3 base score is 3.7 out of 10.