CVE-2026-21443 (GCVE-0-2026-21443)

Vulnerability from cvelistv5 – Published: 2026-02-25 01:23 – Updated: 2026-02-25 01:23
VLAI?
Title
OpenEMR allows inconsistent escaping of translation function output
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.
Severity ?
1.2 (Low)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U
CWE
  • CWE-116 - Improper Encoding or Escaping of Output
Assigner
References
Impacted products
Vendor Product Version
openemr openemr Affected: < 8.0.0
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "openemr",
          "vendor": "openemr",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 8.0.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 1.2,
            "baseSeverity": "LOW",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-116",
              "description": "CWE-116: Improper Encoding or Escaping of Output",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-25T01:23:22.052Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/openemr/openemr/security/advisories/GHSA-3f9j-cqjj-7h46",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/openemr/openemr/security/advisories/GHSA-3f9j-cqjj-7h46"
        },
        {
          "name": "https://github.com/openemr/openemr/commit/b1e3fe8a9ed8bcaf17e0b73d7fad5434f9fe36da",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/openemr/openemr/commit/b1e3fe8a9ed8bcaf17e0b73d7fad5434f9fe36da"
        }
      ],
      "source": {
        "advisory": "GHSA-3f9j-cqjj-7h46",
        "discovery": "UNKNOWN"
      },
      "title": "OpenEMR allows inconsistent escaping of translation function output"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-21443",
    "datePublished": "2026-02-25T01:23:22.052Z",
    "dateReserved": "2025-12-29T03:00:29.276Z",
    "dateUpdated": "2026-02-25T01:23:22.052Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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