CVE-2026-41552

Description

PDF Export Module used in DHTMLX's products Gantt and Scheduler is vulnerable to Path Traversal 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 PDF Export Module version 0.7.6.

CVSS Metrics

• v4.0•CRITICAL•Score: 9.2CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
• v4.0•CRITICAL•Score: 9.2CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Techniques & Countermeasures

• CWE-22•Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

  The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Affected Systems

• dhtmlx•pdf export module

  ≥ 0.3.3, < 0.7.6

References (2)

• https://cert.pl/en/posts/2026/05/CVE-2026-7182
• https://docs.dhtmlx.com/gantt/guides/pdf-export-module-whatsnew/#076:~:text=Fixed%20Remote%20Code%20Execution%20and%20File%20Read%20vulnerabilities