What is CVE-2023-5965?

CVE-2023-5965 is a medium-severity vulnerability in Espocrm, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 4.7/10. Published 2023-11-30.

How severe is CVE-2023-5965?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Is CVE-2023-5965 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Espocrm

CVE-2023-5965

An authenticated privileged attacker could upload a specially crafted zip to the EspoCRM server in version 7.2.5, via the update form, which could lead to arbitrary PHP code execution.

Vulnerability class: Unrestricted File Upload

Published 2023-11-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.010 (62.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: -0.000

Affected products

Espocrm — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

References

www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-espocrm (Third Party Advisory)

Frequently asked questions

What is CVE-2023-5965?: CVE-2023-5965 is a medium-severity vulnerability in Espocrm, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 4.7/10. Published 2023-11-30.
How severe is CVE-2023-5965?: Medium severity. CVSS v3 base score is 4.7 out of 10.
Is CVE-2023-5965 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.