CVE-2026-40508
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
50/100
Published: 2026-08-19
Modified: 2026-10-27
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
Passive
S:
X
AT:
None
VC:
None
VI:
None
VA:
None
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.