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    CVE-2026-33303

    OpenEMR is a free and open source electronic health records and medical practice management application. Versions prior to 8.0.0.2 are vulnerable to stored cross-site scripting (XSS) via unescaped `portal_login_username` in the portal credential print view. A patient portal user can set their login username to an XSS payload, which then executes in a clinic staff member's browser when they open the "Create Portal Login" page for that patient. This crosses from the patient session context into the staff/admin session context. Version 8.0.0.2 fixes the issue.

    Published:Mar 19, 2026
    Last Modified:Mar 25, 2026
    EPS:Mar 19, 2026
    EPSS Score:0.00039
    CVSS Score:5.4

    Affected Products

    Vendor
    Open-emr
    Product
    Openemr
    Vendor
    Openemr
    Product
    Openemr

    Exploits

    https://github.com/openemr/openemr/security/advisories/GHSA-cp37-pmfx-5mhm

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High