OpenEMR: CSRF Protection Bypass on IPPF Point-of-Sale Void and Regen Operations

published 2026-11-05 3 d ago modified 2026-11-06 2 d ago also EUVD-2026-117766

cvss: 7.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits: 0; none known

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, interface/patient_file/pos_checkout_ippf.php performs state-changing void, voidall, and regen operations through GET requests without CSRF token validation. The form_checksum integrity check is conditional and is skipped when the parameter is omitted, allowing a cross-site request to force an authenticated billing user to void checkouts or regenerate invoice counters. The resulting changes can alter ledger state, financial reporting, and audit records. This issue is fixed in version 8.3.0.

Patch / fix

links 3

github.com/openemr/openemr@f760adc commit
github.com/openemr/openemr#13197 pull request
github.com/openemr/openemr/releases/tag/v8_3_0 release

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L

Affected products

openemr openemr

Classification

Weakness

CWE-352 Cross-Site Request Forgery

References

Sources

CVE List CVE-2026-103938
NVD CVE-2026-103938

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary