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CVE-2026-33346— OpenEMR has stored XSS in portal_payment.php via Unescaped table_args

Quick assessment

Affected
openemr openemr
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenEMR是OpenEMR社区的一套开源的医疗管理系统。该系统可用于医疗实践管理、电子医疗记录、处方书写和医疗帐单申请。 OpenEMR 8.0.0.2之前版本存在跨站脚本漏洞，该漏洞源于患者门户支付流程中存在存储型跨站脚本，可能导致患者门户用户植入的任意JavaScript在审核支付的工作人员浏览器中执行。

CVSS 8.7 · High EPSS 1.02% · P62
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I. Basic Information for CVE-2026-33346

Vulnerability Information
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Vulnerability Title
OpenEMR has stored XSS in portal_payment.php via Unescaped table_args
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
OpenEMR 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenEMR是OpenEMR社区的一套开源的医疗管理系统。该系统可用于医疗实践管理、电子医疗记录、处方书写和医疗帐单申请。 OpenEMR 8.0.0.2之前版本存在跨站脚本漏洞，该漏洞源于患者门户支付流程中存在存储型跨站脚本，可能导致患者门户用户植入的任意JavaScript在审核支付的工作人员浏览器中执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
openemr openemr < 8.0.0.2 -

II. Public POCs for CVE-2026-33346

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Qwen3.6-35B-A3B · 6888 chars
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III. Intelligence Information for CVE-2026-33346

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Patches & Fixes for CVE-2026-33346 (1)

Vendor Advisories for CVE-2026-33346 (1)

Same Patch Batch · openemr · 2026-03-19 · 12 CVEs total

CVE-2026-32238 9.1 CRITICAL OpenEMR has Remote Code Execution in backup functionality
CVE-2026-25928 6.5 MEDIUM OpenEMR Vulnerable to Path Traversal When Zipping DICOM Folders
CVE-2026-25744 6.5 MEDIUM OpenEMR: POST /api/.../vital Accepts Attacker-Supplied id and Overwrites Arbitrary Vitals
CVE-2026-33304 6.5 MEDIUM OpenEMR has Authorization Bypass in Dated Reminders Log
CVE-2026-33305 5.4 MEDIUM OpenEMR has Authorization Bypass in FaxSMS AppDispatch Constructor
CVE-2026-33303 5.4 MEDIUM OpenEMR Vulnerable to Stored XSS via Unescaped portal_login_username in Credential Print V
CVE-2026-32119 4.4 MEDIUM OpenEMR has Stored DOM XSS via SearchHighlight text-node reconstruction on Custom Report p
CVE-2026-33301 OpenEMR has arbitrary image file read via PDF generator
CVE-2026-33321 OpenEMR has Out-of-Band Server-Side Request Forgery (OOB SSRF)
CVE-2026-33299 OpenEMR has Stored XSS in patient encounter Eye Exam form answers
CVE-2026-33302 OpenEMR: zhAclCheck Ignores Explicit ACL Denies

IV. Related Vulnerabilities

Same product: openemr
Same vendor: openemr
Same weakness: CWE-79

V. Comments for CVE-2026-33346

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