# CVE-2026-49142: OpenEMR Before 8.5.0 SQL Injection via form_icd_codes[]

Status: published. Published: 2026-10-29. Updated: 2026-11-04.

OpenEMR before 8.5.0 contains an authenticated SQL injection vulnerability in the Syndromic Surveillance module that allows users with Clinician-level privileges to read and modify arbitrary database contents by submitting crafted values in the form_icd_codes[] POST parameter to the syndromicsurveillance/index endpoint. Attackers can inject an unquoted numeric IN() clause and UNION DISTINCT SELECT statement using hex-encoded literals to abuse MySQL extractvalue() for error-based exfiltration of bcrypt password hashes and execute stacked queries that reset passwords, resulting in full administrative account takeover.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/openemr/openemr/pull/14329
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/openemr/openemr/commit/9b52cc0fc3a4eddd9fa7a096f6a3ac2a57d772d0

## Affected products and versions

- openemr / openemr (openemr/openemr): ≥ 0; < 8.5.0 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.7 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.36% as of 2026-11-03; percentile 29.29%

- SSVC: exploitation poc; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-89

## Exploit evidence

- exploit: https://github.com/openemr/openemr/security/advisories/GHSA-w99c-jwcm-24hh (ADP: CISA-ADP)

## References

- https://github.com/openemr/openemr/security/advisories/GHSA-w99c-jwcm-24hh (CNA: VulnCheck; vendor-advisory)

- https://github.com/openemr/openemr/releases/tag/v8_5_0 (CNA: VulnCheck; release-notes)

- https://github.com/openemr/openemr/pull/14329 (CNA: VulnCheck; issue-tracking, patch)

- https://github.com/openemr/openemr/commit/9b52cc0fc3a4eddd9fa7a096f6a3ac2a57d772d0 (CNA: VulnCheck; patch, issue-tracking)

- https://www.vulncheck.com/advisories/openemr-before-sql-injection-via-form-icd-codes (CNA: VulnCheck; third-party-advisory)

- https://github.com/openemr/openemr/security/advisories/GHSA-w99c-jwcm-24hh (ADP: CISA-ADP; exploit)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-49142; retrieved 2026-11-04; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-49142; retrieved 2026-11-04; source updated Not reported

Revision: 4de83e5d9d4b4a5f8da3949822935d4dd5eb4c0bfd56d44063629b1d43d3d329

Canonical: https://y2.dev/cve/CVE-2026-49142

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