High severity · published Mar 19, 2026
CVE-2026-33346
OpenEMR has stored XSS in portal_payment.php via Unescaped table_args
8.7
CVSS
0.3%
EPSS
No
On KEV
Description
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.0.0.2, a stored cross-site scripting (XSS) vulnerability in the patient portal payment flow allows a patient portal user to persist arbitrary JavaScript that executes in the browser of a staff member who reviews the payment submission. The payload is stored via `portal/lib/paylib.php` and rendered without escaping in `portal/portal_payment.php`. Version 8.0.0.2 fixes the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
openemr · openemr
< 8.0.0.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-33346
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-33346
Patch
https://github.com/openemr/openemr/commit/6e9e1566d6e271a6d839614674b887e3a73d7da1
Exploit
https://github.com/openemr/openemr/security/advisories/GHSA-qvf6-6xc6-9qv7
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