CVE-2026-40507

Published: Ago 19, 2026 Last Modified: Ago 19, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,1
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: active
Confidentiality: N/A
Integrity: N/A
Availability: N/A
MEDIUM 6,1
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: changed
Confidentiality: low
Integrity: low
Availability: none

Description

AI Translation Available

OpenEMR before 8.3.0 contains a reflected cross-site scripting vulnerability in the patient portal template import handler. The templateHtml GET parameter is reflected into the page response without sanitization. An attacker can craft a URL that executes arbitrary JavaScript in the browser of any authenticated user with Forms Administration permissions who visits the link, enabling session hijacking.

79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Confidentiality Integrity Availability
Potential Impacts:
Bypass Protection Mechanism Read Application Data Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies: AI/ML, Web Based, Web Server
Likelihood of Exploit: High
View CWE Details
https://github.com/openemr/openemr/commit/ba316dd1d8de12911…
https://github.com/openemr/openemr/commit/ba316dd1d8de1291102da3f20f64240729ff8…
https://github.com/openemr/openemr/releases/tag/v8_3_0
https://github.com/openemr/openemr/releases/tag/v8_3_0
https://github.com/openemr/openemr/security/advisories/GHSA…
https://github.com/openemr/openemr/security/advisories/GHSA-rmmr-8498-463g
https://www.vulncheck.com/advisories/openemr-reflected-xss-…
https://www.vulncheck.com/advisories/openemr-reflected-xss-via-templatehtml-par…