CVE-2026-21443

Summary

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.

Affected Software

Weaknesses

• CWE-116: CWE-116: Improper Encoding or Escaping of Output

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/openemr/openemr/security/advisories/GHSA-3f9j-cqjj-7h46
• https://github.com/openemr/openemr/commit/b1e3fe8a9ed8bcaf17e0b73d7fad5434f9fe36da

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