CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NCVE-2026-104135 open-emr openemr: Missing Authorization
Medium (6.5) in open-emr openemr. EPSS 0.4% estimated probability of exploitation activity in the next 30 days.
On this page
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, library/ajax/payment_ajax.php validates a CSRF token but performs no AclMain authorization check before executing a wildcard search of patient_data. Any authenticated user, including a non-clinical role, can enumerate patient identifiers, full names, and dates of birth through the set_patient branch. This issue is fixed in version 8.3.0.
Severity
- EPSS
- 0.4% (unchanged from 0.4% a week ago) estimated probability of exploitation activity in the next 30 days; 33rd percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: PoC · Automatable: no · Technical impact: partial, assessed 2026-11-05. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-862 Missing Authorization
- OWASP Top 10
- A01:2025 Broken Access Control
- Published
- Modified
- NVD analysis
- Analyzed
- Record from
- the NVD, synced
Ask an AI about this CVE
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Explain CVE-2026-104135 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-104135?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-104135?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-104135 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
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Affected
Versions
From the NVD's CPE matches.
| Product | Affected |
|---|---|
| open-emr:openemr | before 8.3.0 |
Fix and patched versions
- Patch: https://github.com/openemr/openemr/commit/7973cab3fe3f2fd2374ed71c02605e3c93491c36
- Patch: https://github.com/openemr/openemr/pull/13200
- Vendor advisory: https://github.com/openemr/openemr/security/advisories/GHSA-4269-grc6-qr62
Attack patterns (CAPEC)
- CAPEC-665 Exploitation of Thunderbolt Protection Flaws Likelihood: Low · Severity: Very High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.
History
- Analyzed by the NVD
Changes since this site first stored the record. The same for every record: /api/public/changes.