CVE-2026-33911
Last modified
CVE-2026-33911 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, the POST parameter `title` is reflected back in a JSON response built with `json_encode()`. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, the POST parameter `title` is reflected back in a JSON response built with `json_encode()`. Because the response is served with a `text/html` Content-Type, the browser interprets injected HTML/script tags rather than treating the output as JSON. An authenticated attacker can craft a request that executes arbitrary JavaScript in a victim's session. Version 8.0.0.3 contains a fix.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Open-Emr | Openemr | < 8.0.0.3 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-33911?
How severe is CVE-2026-33911?
How do I fix CVE-2026-33911?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-33906Ella Core is a 5G core designed for private networks. Prior …7.2
- CVE-2026-33907Ella Core is a 5G core designed for private networks. Versio…6.5
- CVE-2026-33908ImageMagick is free and open-source software used for editin…7.5
- CVE-2026-33909OpenEMR is a free and open source electronic health records …5.9
- CVE-2026-3391A security flaw has been discovered in FascinatedBox lily up…5.5
- CVE-2026-33910OpenEMR is a free and open source electronic health records …8.8
- CVE-2026-33912OpenEMR is a free and open source electronic health records …5.4
- CVE-2026-33913OpenEMR is a free and open source electronic health records …4.9
- CVE-2026-33914OpenEMR is a free and open source electronic health records …7.2
- CVE-2026-33915OpenEMR is a free and open source electronic health records …5.4
- CVE-2026-33916Handlebars provides the power necessary to let users build s…4.7
- CVE-2026-33917OpenEMR is a free and open source electronic health records …8.8
Are you affected by CVE-2026-33911?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST