Unrestricted Upload of File with Dangerous Type in EspoCRM

Summary

CVECVE-2023-5966
StatePUBLISHED
AssignerINCIBE
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-11-30 14:15:13 UTC
Updated2026-04-20 09:16:08 UTC
DescriptionAn 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


VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
3.1[email protected]Secondary4.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
3.1CNACVSS4.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS: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)

TypeVendorProductVersionUpdateEditionLanguage
Application Espocrm Espocrm All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA EspoCRM EspoCRM affected 7.5.2 custom Not specified

References

ReferenceSourceLinkTags
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.

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