CVE-2026-33733

High

Description

EspoCRM is an open source customer relationship management application. Prior to version 9.3.4, the admin template management endpoints accept attacker-controlled `name` and `scope` values and pass them into template path construction without normalization or traversal filtering. As a result, an authenticated admin can use `../` sequences to escape the intended template directory and read, create, overwrite, or delete arbitrary files that resolve to `body.tpl` or `subject.tpl` under the web application user's filesystem permissions. Version 9.3.4 fixes the issue.

SeverityHigh
CVSS7.2
Exploit probability—
ProductEspocrm
PublishedApr 22, 2026
First seenApr 22, 2026
Weakness typeCWE-23CWE-23

How to fix

Update
  • espocrm espocrm9.3.4 or later

Affected products

ProductAffected versionsFixed in
espocrm espocrmv < 9.3.49.3.4

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