CVE-2026-33733Public exploitNetwork attack vector

Admin file manipulation via template path traversal

Published Apr 22, 2026 · Updated Apr 22, 2026

Path traversal in EspoCRM before 9.3.4 allows remote authenticated users to read, write, or delete files through the HTTP API. TemplateManager passes request-controlled name and scope values to TemplateFileManager, which interpolates them into paths without normalization or traversal filtering. Exploitation requires administrator privileges, and operations remain limited to body.tpl or subject.tpl files permitted by the web application user's filesystem access.

CVSS severity7.2
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in EspoCRM before 9.3.4 allows remote authenticated users to read, write, or delete files through the HTTP API. TemplateManager passes request-controlled name and scope values to TemplateFileManager, which interpolates them into paths without normalization or traversal filtering. Exploitation requires administrator privileges, and operations remain limited to body.tpl or subject.tpl files permitted by the web application user's filesystem access.

The record

CVE
CVE-2026-33733
Published
Apr 22, 2026
Updated
Apr 22, 2026
Vendor
EspoCRM
Product
EspoCRM
Classifications
CWE-23, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 9.3.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

EspoCRM · EspoCRMversion=< 9.3.4

Published CVSS scores

7.2GitHubCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-23Relative Path Traversal
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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