CVE-2026-33933— Reflected XSS via Unescaped contextName Parameter in Custom Template Editor
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I. Basic Information for CVE-2026-33933
Vulnerability Information
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Vulnerability Title
Reflected XSS via Unescaped contextName Parameter in Custom Template Editor
Source: NVD (National Vulnerability Database)
Vulnerability Description
OpenEMR is a free and open source electronic health records and medical practice management application. Starting in version 7.0.2.1 and prior to version 8.0.0.3, a reflected cross-site scripting (XSS) vulnerability in the custom template editor allows an attacker to execute arbitrary JavaScript in an authenticated staff member's browser session by sending them a crafted URL. The attacker does not need an OpenEMR account. Version 8.0.0.3 patches the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
OpenEMR 安全漏洞
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 7.0.2.1版本至8.0.0.3之前版本存在安全漏洞，该漏洞源于自定义模板编辑器存在反射型跨站脚本，可能导致攻击者通过特制URL在已验证员工浏览器会话中执行任意JavaScript。
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
II. Public POCs for CVE-2026-33933
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- Release v8_0_0_3 · openemr/openemr · GitHubx_refsource_MISC
- fix: ghsa-9qh7-cfq4-j7c3 · openemr/openemr@d5c8d49 · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-33933
Same Patch Batch · openemr · 2026-03-25 · 20 CVEs total
| CVE-2026-33917 | 8.8 HIGH | OpenEMR has SQL Injection in CAMOS Form |
| CVE-2026-33348 | 8.7 HIGH | OpenEMR has Stored XSS in patient encounter Eye Exam form $CHRONIC2 and $CHRONIC3 |
| CVE-2026-29187 | 8.1 HIGH | OpenEMR Vulnerable to Authenticated Blind Boolean-Based SQL Injection in new_search_popup. |
| CVE-2026-34055 | 8.1 HIGH | OpenEMR has IDOR in Patient Notes Web UI allows unauthorized note access/modification |
| CVE-2026-33913 | 7.7 HIGH | OpenEMR: XInclude Injection in CCDA Import Allows Reading Arbitrary Server Files |
| CVE-2026-34056 | 7.7 HIGH | OpenEMR has a Privilege Escalation that Allows a Low-Level User to View Admin-Only Data |
| CVE-2026-33918 | 7.6 HIGH | OpenEMR Missing Authorization on Claim File Download Endpoint |
| CVE-2026-33932 | 7.6 HIGH | OpenEMR has Stored XSS in CCDA Preview via Unsanitized linkHtml Attributes |
| CVE-2026-33910 | 7.2 HIGH | OpenEMR has a SQL Injection Vulnerability in patient selection |
| CVE-2026-33914 | 7.2 HIGH | OpenEMR has SQL Injection in PostCalendar Category Delete |
| CVE-2026-34053 | 7.1 HIGH | OpenEMR Missing Authorization in Procedure Order AJAX Deletion Handler |
| CVE-2026-33931 | 6.5 MEDIUM | OpenEMR has IDOR in Portal Payment Page that Allows Cross-Patient Record Access |
| CVE-2026-32120 | 6.5 MEDIUM | OpenEMR has IDOR in Fee Sheet Product Save |
| CVE-2026-33909 | 5.9 MEDIUM | OpenEMR Vulnerable to SQL Injection via Unsanitized Variables in MedEx Recall/Reminder Pro |
| CVE-2026-33911 | 5.4 MEDIUM | OpenEMR vulnerable to reflected XSS in graphs.php via title parameter |
| CVE-2026-33912 | 5.4 MEDIUM | OpenEMR has reflected XSS in ajax_download.php via reportID parameter |
| CVE-2026-33915 | 5.4 MEDIUM | OpenEMR Missing ACL Checks on Insurance Company API Routes |
| CVE-2026-34051 | 5.4 MEDIUM | OpenEMR has Improper ACL On Import/Export Popup |
| CVE-2026-33934 | 4.3 MEDIUM | OpenEMR's Missing Authorization in show-signature.php Allows Portal Patients to Read Staff |
IV. Related Vulnerabilities
Same product: openemr
- CVE-2023-54347
OpenEMR 7.0.1 Authentication Brute Force Mitigation Bypass - CVE-2026-34056
OpenEMR has a Privilege Escalation that Allows a Low-Level U - CVE-2026-34055
OpenEMR has IDOR in Patient Notes Web UI allows unauthorized - CVE-2026-34053
OpenEMR Missing Authorization in Procedure Order AJAX Deleti - CVE-2026-34051
OpenEMR has Improper ACL On Import/Export Popup
Same vendor: openemr
- CVE-2026-34056
OpenEMR has a Privilege Escalation that Allows a Low-Level U - CVE-2026-34055
OpenEMR has IDOR in Patient Notes Web UI allows unauthorized - CVE-2026-34053
OpenEMR Missing Authorization in Procedure Order AJAX Deleti - CVE-2026-34051
OpenEMR has Improper ACL On Import/Export Popup - CVE-2026-33934
OpenEMR's Missing Authorization in show-signature.php Allows
Same weakness: CWE-79
- CVE-2026-8262
Devs Palace ERP Online chart-save cross site scripting - CVE-2026-8256
Devs Palace ERP Online mr-save cross site scripting - CVE-2026-8255
Devs Palace ERP Online add_new_customer cross site scripting - CVE-2026-8254
Devs Palace ERP Online sales_save cross site scripting - CVE-2026-8253
Devs Palace ERP Online purchase_save cross site scripting
V. Comments for CVE-2026-33933
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