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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-47168
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-15 15:17:34 UTC
Updated2026-10-20 03:17:15 UTC
DescriptionEspoCRM 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.

Risk And Classification

Primary CVSS: v3.1 9.1 CRITICAL from [email protected]

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

EPSS: 0.004230000 probability, percentile 0.352530000 (date 2026-10-20)

Problem Types: CWE-502 | CWE-502 CWE-502: Deserialization of Untrusted Data

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Espocrm Espocrm affected < 9.3.7 Not specified

References

ReferenceSourceLinkTags
github.com/espocrm/espocrm/releases/tag/9.3.7 [email protected] github.com
github.com/espocrm/espocrm/commit/f48d1d26ffa05eac07ef72bb7f00f67a851184e1 [email protected] github.com
github.com/espocrm/espocrm/security/advisories/GHSA-7q78-jjr9-mqcg [email protected] github.com
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