CVE-2022-2733
Published: 09 August 2022
Summary
CVE-2022-2733 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Open-Emr Openemr. Its CVSS base score is 6.1 (Medium).
Operationally, ranked in the top 0.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2022-2733 is a reflected cross-site scripting vulnerability (CWE-79) affecting the OpenEMR electronic health records platform in versions prior to 7.0.0.1. The flaw resides in the web application code and carries a CVSS 3.1 score of 6.1, reflecting network attack vector, low complexity, no required privileges, and required user interaction with changed scope.
An unauthenticated remote attacker can exploit the issue by crafting a malicious link that, when clicked by a victim, executes arbitrary script in the context of the OpenEMR application. Successful exploitation allows limited disclosure and modification of data within the affected user's session while potentially impacting other users or resources due to the changed scope.
The referenced commit 59458bc15ab0cb556c521de9d5187167d6f88945 in the OpenEMR repository addresses the vulnerability, and the associated huntr.dev report confirms the fix is included in release 7.0.0.1. The EPSS score has remained elevated, with a current value of 0.8967 and a recorded peak of 0.9175.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-34975
Vulnerability details
Cross-site Scripting (XSS) - Reflected in GitHub repository openemr/openemr prior to 7.0.0.1.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.