CVE-2026-33733

HIGH

EspoCRM has Admin TemplateManager path traversal that allows arbitrary file read write and delete

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 7.2
EPSS 0.0010
EPSS Percentile 28.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-23
Status published
Products (1)
espocrm/espocrm < 9.3.4 (2 CPE variants)
Published Apr 22, 2026
Tracked Since Apr 23, 2026