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.
CVE-2026-21443
MEDIUMNVD 6.16.1Trending — 3 sources updated this week
EchelonGraph scoreLOW confidence
This medium-severity CVE scores 6.1 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: nvd
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 6.1(low)
- EG Risk
- 32(Track)EG Risk 32/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity61% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 4%
- KEV
- Not listed
Published
February 25, 2026
Last Modified
June 17, 2026
References (2)
- security-advisories@githubhttps://github.com/openemr/openemr/commit/b1e3fe8a9ed8bcaf17e0b73d7fad5434f9fe36da
- security-advisories@githubhttps://github.com/openemr/openemr/security/advisories/GHSA-3f9j-cqjj-7h46
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 3× in last 7d / 3× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-27 14:13 UTCEPSS rescore
- 2026-07-27 14:07 UTCEG score recompute
- 2026-07-27 13:55 UTCOSV refresh
Related CVEs(same CWE)
Same CWE
10 shownCWE-116
Frequently asked(5)
What is CVE-2026-21443?
CVE-2026-21443 is a medium vulnerability published on February 25, 2026. 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…
When was CVE-2026-21443 disclosed?
CVE-2026-21443 was first published in the National Vulnerability Database on February 25, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21443 actively exploited?
CVE-2026-21443 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 96.0% of all scored CVEs.
What is the CVSS score of CVE-2026-21443?
CVE-2026-21443 has a CVSS v3 base score of 6.1 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-21443?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21443, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-21443
Is Your Infrastructure Affected by CVE-2026-21443?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.