OpenEMR before 8.3.0 contains a stored cross-site scripting vulnerability in the patient portal template import handler that allows authenticated attackers with Forms Administration permissions to upload template files containing arbitrary HTML or JavaScript. Attackers can inject malicious scripts through the template upload functionality, which are stored without sanitization and execute in the browser of any other Forms Administration user who views the template in the HTML editor.
History

Wed, 19 Aug 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Openemr
Openemr openemr
Vendors & Products Openemr
Openemr openemr

Wed, 19 Aug 2026 15:00:00 +0000

Type Values Removed Values Added
Description OpenEMR before 8.3.0 contains a stored cross-site scripting vulnerability in the patient portal template import handler that allows authenticated attackers with Forms Administration permissions to upload template files containing arbitrary HTML or JavaScript. Attackers can inject malicious scripts through the template upload functionality, which are stored without sanitization and execute in the browser of any other Forms Administration user who views the template in the HTML editor.
Title OpenEMR < 8.3.0 Stored XSS via Patient Portal Template Import Handler
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-08-19T14:51:01.748Z

Updated: 2026-08-19T15:20:11.616Z

Reserved: 2026-04-13T20:29:02.808Z

Link: CVE-2026-40508

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-19T15:17:01.707

Modified: 2026-08-19T16:17:09.640

Link: CVE-2026-40508

cve-icon Redhat

No data.