Unrestricted Upload of File with Dangerous Type in EspoCRM
Summary
| CVE | CVE-2023-5966 |
|---|---|
| State | PUBLISHED |
| Assigner | INCIBE |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-11-30 14:15:13 UTC |
| Updated | 2026-04-20 09:16:08 UTC |
| Description | An authenticated privileged attacker could upload a specially crafted zip to the EspoCRM server in version 7.2.5, via the extension deployment form, which could lead to arbitrary PHP code execution. |
Risk And Classification
Primary CVSS: v3.1 7.2 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.004430000 probability, percentile 0.633480000 (date 2026-04-21)
Problem Types: CWE-434 | CWE-434 CWE-434 Unrestricted Upload of File with Dangerous Type
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | [email protected] | Secondary | 4.7 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
| 3.1 | CNA | CVSS | 4.7 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
HighUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-espocrm | af854a3a-2127-422b-91ae-364da2661108 | www.incibe.es | Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Pedro José Navas Pérez (en)
Additional Advisory Data
Solutions
CNA: Users with administrator profile can load extensions and updates by design, as this is a functionality that most users use and request. It is possible to restrict exploitation of the vulnerability by enabling the "restrictedMode" option in the configuration menu.
There are currently no legacy QID mappings associated with this CVE.