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CVE-2026-47168— EspoCRM: Authenticated RCE via Unsafe PHP Object Deserialization in MassAction/Export params

Quick assessment

Affected
espocrm espocrm
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

EspoCRM 是一款开源客户关系管理（CRM）应用程序。在 9.3.7 版本之前，经过身份认证的管理员可以提交精心构造的已序列化 PHP 对象数据，这些数据会被存储在后台的“批量操作”（MassAction）或“导出”（Export）参数中，随后由应用程序反序列化。由于反序列化路径未对允许反序列化的类进行限制，攻击者能够控制对象的实例化过程，从而导致在服务器上执行任意代码。此问题已在 9.3.7 版本中得到修复。

CVSS 9.1 · Critical

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
espocrm espocrm < 9.3.7 affected
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I. Basic Information for CVE-2026-47168

Vulnerability Information
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Vulnerability Title
EspoCRM: Authenticated RCE via Unsafe PHP Object Deserialization in MassAction/Export params
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
espocrm espocrm < 9.3.7 -

II. Public POCs for CVE-2026-47168

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III. Intelligence Information for CVE-2026-47168

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Patches & Fixes for CVE-2026-47168 (1)

Vendor Advisories for CVE-2026-47168 (1)

Vendor Pages for CVE-2026-47168 (1)

Same Patch Batch · espocrm · 2026-10-15 · 12 CVEs total

CVE-2026-53574 7.6 HIGH EspoCRM: Blind SQL injection via streamAttachments where-clause complex expression
CVE-2026-46691 6.5 MEDIUM EspoCRM: IDOR in Import exportErrors Endpoint Leaks CSV Data of Other Users
CVE-2026-46694 6.5 MEDIUM EspoCRM: Portal User ACL Bypass Exposes Internal Stream Notes
CVE-2026-77460 6.5 MEDIUM EspoCRM: Mass email template renderer leaks restricted record fields
CVE-2026-75505 6.0 MEDIUM EspoCRM: Access control bypass in Mass Update letting regular user with Mass Update permis
CVE-2026-63130 5.5 MEDIUM EspoCRM: Admin path traversal in LabelManager (Custom Label saving) allows arbitrary `.jso
CVE-2026-55154 5.4 MEDIUM EspoCRM: CSV/Formula Injection sanitizer bypass via leading whitespace/control characters
CVE-2026-46708 4.3 MEDIUM EspoCRM: Target list Opt-Out actions allows opting out record without access Target List a
CVE-2026-59994 4.3 MEDIUM EspoCRM: Pre-authentication stored HTML injection in stream notification emails about emai
CVE-2026-55184 3.5 LOW EspoCRM: Stored XSS in wysiwyg template fields if CSP is disabled
CVE-2026-53575 2.7 LOW EspoCRM: Persistent XSS via CSP nonce injection in applicationName setting by admin user

IV. Related Vulnerabilities

Same product: espocrm
Same vendor: espocrm
Same weakness: CWE-502

V. Comments for CVE-2026-47168

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