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VulnerabilityPoC3 · 1 read

CVE-2026-33656

CVSS 3.1
9.1 critical
EPSS
<1%p43
Published
·
Modified
Analyze CVE-2026-33656 with Vani AIImpact, affected versions, exploitation status, mitigations and detection

Description · NVD

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.

Vendors
espocrm
Products
espocrm
Weakness
CWE-22
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

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