Vulnerability in Open-Emr Openemr

CVE-2026-21443

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, the `xl()` translation function returns unescaped strings. While wrapper functions exist for escaping in different contexts (`xlt()` for HTML, `xla()` for attributes, `xlj()` for JavaScript), there are places in the codebase where `xl()` output is used directly without escaping. If an attacker could insert malicious content into the translation database, these unescaped outputs could lead to XSS. Version 8.0.0 fixes the issue.

EPSS: 0.001 (4.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-21443?
CVE-2026-21443 is a medium-severity vulnerability in Open-Emr Openemr, classified under Improper Encoding or Escaping of Output. CVSS score: 6.1/10. Published 2026-02-25.
How severe is CVE-2026-21443?
Medium severity. CVSS v3 base score is 6.1 out of 10.