Platform
php
Component
openemr
Fixed in
7.0.0.1
CVE-2022-2733 describes a reflected Cross-Site Scripting (XSS) vulnerability identified in OpenEMR versions prior to 7.0.0.1. Successful exploitation could allow an attacker to inject malicious scripts into a user's browser, potentially leading to session hijacking or defacement. The vulnerability affects OpenEMR installations using versions 7.0.0.1 and earlier. A patch is available in version 7.0.0.1.
This XSS vulnerability allows an attacker to inject arbitrary JavaScript code into the context of a user's browser session within OpenEMR. An attacker could craft a malicious URL containing the XSS payload and trick a user into clicking it. Upon visiting the crafted URL, the injected script would execute, potentially stealing session cookies, redirecting the user to a phishing site, or modifying the content of the page. The impact is significant, as it can compromise user accounts and potentially lead to data breaches or unauthorized access to sensitive patient information. This vulnerability is particularly concerning given OpenEMR's use in healthcare settings where patient data privacy is paramount.
CVE-2022-2733 was publicly disclosed on August 9, 2022. While no active exploitation campaigns have been definitively linked to this specific vulnerability, the ease of exploitation and the potential impact make it a likely target for opportunistic attackers. There are publicly available proof-of-concept exploits demonstrating the vulnerability. The vulnerability is not currently listed on the CISA KEV catalog.
Exploit Status
EPSS
91.75% (100% percentile)
CVSS Vector
The primary mitigation for CVE-2022-2733 is to immediately upgrade OpenEMR to version 7.0.0.1 or later. If upgrading is not immediately feasible, consider implementing input validation and output encoding on all user-supplied data to prevent the injection of malicious scripts. Web Application Firewalls (WAFs) configured with rules to detect and block XSS payloads can also provide a temporary layer of protection. Regularly review and update OpenEMR's security configuration to minimize the attack surface. After upgrading, confirm the vulnerability is resolved by attempting to inject a simple XSS payload through a vulnerable endpoint and verifying that it is properly sanitized.
Actualice OpenEMR a la versión 7.0.0.1 o superior. Esta versión contiene la corrección para la vulnerabilidad XSS reflejada. La actualización se puede realizar a través del panel de administración de OpenEMR o descargando la última versión del software.
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CVE-2022-2733 is a critical reflected Cross-Site Scripting (XSS) vulnerability affecting OpenEMR versions up to 7.0.0.1, allowing attackers to inject malicious scripts.
Yes, if you are running OpenEMR version 7.0.0.1 or earlier, you are vulnerable to this XSS attack.
Upgrade OpenEMR to version 7.0.0.1 or later to resolve the vulnerability. Implement input validation and output encoding as a temporary measure.
While no confirmed active campaigns are known, the ease of exploitation makes it a potential target for attackers.
Refer to the OpenEMR security advisory for detailed information and updates: [https://openemr.org/security/](https://openemr.org/security/)
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