CVE-2026-47168

CRITICAL 9.1

EspoCRM: Authenticated RCE via Unsafe PHP Object Deserialization in MassAction/Export params

CVSS Score

9.1

EPSS Score

0.0%

EPSS Percentile

0th

EspoCRM is an open source customer relationship management application. Prior to 9.3.7, an authenticated administrator can supply crafted serialized PHP object data that is stored in background MassAction or Export parameters and later deserialized by the application. The deserialization paths do not restrict allowed classes, allowing attacker-controlled object instantiation and arbitrary code execution on the server. This issue is fixed in version 9.3.7.

CWE	CWE-502
Vendor	espocrm
Product	espocrm
Published	Oct 15, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

espocrm / espocrm

< 9.3.7

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/espocrm/espocrm/security/advisories/GHSA-7q78-jjr9-mqcg github.com: https://github.com/espocrm/espocrm/commit/f48d1d26ffa05eac07ef72bb7f00f67a851184e1 github.com: https://github.com/espocrm/espocrm/releases/tag/9.3.7