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medium5.4

CVE-2026-40508

OpenEMR before 8.3.0 contains a stored cross-site scripting vulnerability in the patient portal template import handler that allows authenticated attackers wit…

Impact

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.

Affected products

ProductAffected versions
OpenEMR
before 8.3.0

Versions were read from the advisory text. No structured product data has been published for this record yet.

Weakness classification

References