CVE-2026-7182: Path Traversal in Diagram

Severity: critical (CVSS 9.2 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-15 · updated 2026-10-26
Weakness: CWE-22

Description

Diagram's export module is vulnerable to Path Traversal in src attribute due to lack of HTML sanitization. An unauthenticated user could craft the html payload which could include local files from the server and display them in the generated pdf. This issue was fixed in version 1.1.1.

Affected products

DHTMLX Diagram: from 1.0.0 before 1.1.1 — fixed in 1.1.1

How to fix

Upgrade to a fixed version: DHTMLX Diagram 1.1.1. Check the vendor advisory for mitigations.

References

https://cert.pl/en/posts/2026/05/CVE-2026-7182
https://dhtmlx.com/docs/products/dhtmlxDiagram/
https://docs.dhtmlx.com/diagram/whats_new/#version-612

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