# CVE-2026-124446: OpenEMR before 8.3.0 Arbitrary File Read and Write via FaxSMS disposeDocument

Status: published. Published: 2026-11-08. Updated: 2026-11-12.

OpenEMR before 8.3.0 contains a path traversal vulnerability in the FaxSMS module's RCFaxClient and SignalWireClient disposeDocument functions that allows authenticated low-privilege users to read and overwrite arbitrary files via the unsanitized file_path parameter. Attackers can request action=download to retrieve cleartext files like sqlconf.php database credentials and keys, or use action=setup to overwrite web-server-writable files with ciphertext.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- openemr / openemr: ≥ 0; < 8.3.0 (affected, semver); 8.3.0 (unaffected, 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

- 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: disclosure@vulncheck.com

- 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: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: 0.35% as of 2026-11-12; percentile 28.82%

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

- Weaknesses: CWE-73

## Exploit evidence

- exploit: https://github.com/openemr/openemr/security/advisories/GHSA-x2vr-jgg8-c57c (ADP: CISA-ADP)

## References

- https://github.com/openemr/openemr/security/advisories/GHSA-x2vr-jgg8-c57c (CNA: VulnCheck; vendor-advisory)

- https://www.vulncheck.com/advisories/openemr-before-8.3.0-arbitrary-file-read-and-write-via-faxsms-disposedocument (CNA: VulnCheck; third-party-advisory)

- https://github.com/openemr/openemr/security/advisories/GHSA-x2vr-jgg8-c57c (ADP: CISA-ADP; exploit)

- https://github.com/openemr/openemr/security/advisories/GHSA-x2vr-jgg8-c57c (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/openemr-before-8.3.0-arbitrary-file-read-and-write-via-faxsms-disposedocument (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-124446; retrieved 2026-11-12; source updated 2026-11-12

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-124446; retrieved 2026-11-11; source updated 2026-11-10

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-124446; retrieved 2026-11-12; source updated Not reported

Revision: 00786af667f647fa7c63b556f683a8cec3a751b3dca20d2351ec014ac5f852d9

Canonical: https://y2.dev/cve/CVE-2026-124446

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