CVE-2026-47168: EspoCRM unsafe deserialization in MassAction and Export

CVE-2026-47168 · Severity: critical · CVSS 9.1 · Published 2026-10-15

EspoCRM is an open-source customer relationship management application used by organizations to manage customer interactions and data. An authenticated administrator can inject malicious PHP code through crafted data in background MassAction or Export parameters, which the application later deserializes without proper validation. This allows an attacker with admin privileges to execute arbitrary code on the server, potentially compromising the entire CRM system and any data it manages.

Technologies: Espocrm. Vendors: Espocrm.

Quick answers

Is CVE-2026-47168 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-47168 being exploited in the wild.
How severe is CVE-2026-47168?
Critical severity, with a CVSS score of 9.1, published 15 October 2026.
Which products and versions are affected?
Espocrm prior to 9.3.7.
Is there a fix for CVE-2026-47168?
Yes: fixed in 9.3.7. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-47168 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-47168?
Check whether you run Espocrm at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 9.3.7

Technical details

The vulnerability is an insecure deserialization flaw in EspoCRM's MassAction and Export parameter handling. An authenticated admin-level attacker can supply malicious serialized PHP objects that bypass class restrictions during deserialization, leading to arbitrary object instantiation and remote code execution via PHP magic methods. The fix restricts allowed classes during the deserialization process.

Affected products

  • EspoCRM EspoCRM prior to 9.3.7

Timeline

  • 2026-10-15: disclosed
  • 2026-05-18: patched: Version 9.3.7 released

References

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