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Critical severity9.1NVD Advisory· Published Apr 22, 2026· Updated Apr 27, 2026

CVE-2026-33656

CVE-2026-33656

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2
  • Espocrm/Espocrm2 versions
    cpe:2.3:a:espocrm:espocrm:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:espocrm:espocrm:*:*:*:*:*:*:*:*range: <9.3.4
    • (no CPE)range: <9.3.4

Patches

Vulnerability mechanics

References

1

News mentions

0

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