CVE-2026-33656

CRITICAL

9.1

Description

EspoCRM is an open source customer relationship management application. Prior to version 9.3.4, EspoCRM's built-in formula scripting engine allowing updating attachment's sourceId thus allowing an authenticated admin to overwrite the `sourceId` field on `Attachment` entities. Because `sourceId` is concatenated directly into a file path with no sanitization in `EspoUploadDir::getFilePath()`, an attacker can redirect any file read or write operation to an arbitrary path within the web server's `open_basedir` scope. Version 9.3.4 fixes the issue.

Details CVE

Score CVSS v3.19.1

SeveriteCRITICAL

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisHIGH

Interaction utilisateurNONE

Publie4/22/2026

Derniere modification4/22/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-22

References

https://github.com/espocrm/espocrm/security/advisories/GHSA-7922-x7cf-j54x(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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