Vulnerability Report

CVE-2026-33933

Title: Reflected Cross-Site Scripting (XSS) in Custom Template Editor

XSS

Proof Of Concept

No public PoC currently indexed for CVE-2026-33933.

CWE Category CWE-79
Published Date Mar 26, 2026
Modified Date Mar 26, 2026
Exploit Status Not Found
Score 6.1 CVSS v3.1
Exploit Probability (EPSS)
0.27%

Vulnerability Summary

CVE-2026-33933: 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.

Impacted Vendors

O
openemr 1
O
open-emr 1

Reference Links

https://github.com/openemr/openemr/commit/d5c8d49ef19983472b2d7db0dbebd2dac9d6a200 https://github.com/openemr/openemr/commit/de9b6eb0da574430e8223c014cf4a05b0adc29d8 https://github.com/openemr/openemr/releases/tag/v8_0_0_3 https://github.com/openemr/openemr/security/advisories/GHSA-9qh7-cfq4-j7c3
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.1
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-33933 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Stack

No specific products linked.