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.
https://www.vulncheck.com/advisories/openemr-before-sql-injection-via-form-icd-codes
https://github.com/openemr/openemr/security/advisories/GHSA-w99c-jwcm-24hh
https://github.com/openemr/openemr/releases/tag/v8_5_0
https://github.com/openemr/openemr/pull/14329
https://github.com/openemr/openemr/commit/9b52cc0fc3a4eddd9fa7a096f6a3ac2a57d772d0
Published: 2026-10-29
Updated: 2026-10-29
Base Score: 9
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C
Severity: High
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
Base Score: 8.7
Vector: 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
Severity: High
EPSS: 0.00355