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CVE-2026-126464

MEDIUMCVSS 4.3/10EPSS 0.26%

Last modified

CVE-2026-126464 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. OpenEMR before 8.5.0 contains a server-side request forgery vulnerability in PatientPortalPDFDocumentCreator::createPdfObject() that allows authenticated patients to make the server issue HTTP GET requests. Attackers can submit img src, inline style url(), or reinserted unpurified style blocks via the content parameter of portal/lib/doc_lib.php to probe internal ports and cloud metadata endpoints.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

Description

OpenEMR before 8.5.0 contains a server-side request forgery vulnerability in PatientPortalPDFDocumentCreator::createPdfObject() that allows authenticated patients to make the server issue HTTP GET requests. Attackers can submit img src, inline style url(), or reinserted unpurified style blocks via the content parameter of portal/lib/doc_lib.php to probe internal ports and cloud metadata endpoints.

Metrics

CVSS 3.1
4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS 4.0
5.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/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

EPSS Probability
0.26%

18.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
openemropenemr< 8.5.0

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-126464?
OpenEMR before 8.5.0 contains a server-side request forgery vulnerability in PatientPortalPDFDocumentCreator::createPdfObject() that allows authenticated patients to make the server issue HTTP GET requests. Attackers can submit img src, inline style url(), or reinserted unpurified style blocks via the content parameter of portal/lib/doc_lib.php to probe internal ports and cloud metadata endpoints.
How severe is CVE-2026-126464?
CVE-2026-126464 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.
How do I fix CVE-2026-126464?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST