CVE-2026-40507

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Source
https://cve.org/CVERecord?id=CVE-2026-40507
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40507.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-40507
Aliases
  • GHSA-rmmr-8498-463g
Published
2026-08-19T14:48:49Z
Modified
2026-09-11T03:30:18Z
Severity
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
OpenEMR < 8.3.0 Reflected XSS via templateHtml Parameter in Patient Portal
Details

OpenEMR before 8.3.0 contains a reflected cross-site scripting vulnerability in the patient portal template import handler. The templateHtml GET parameter is reflected into the page response without sanitization. An attacker can craft a URL that executes arbitrary JavaScript in the browser of any authenticated user with Forms Administration permissions who visits the link, enabling session hijacking.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40507.json"
}
References

Affected packages

Git / github.com/openemr/openemr

Affected ranges

Type
GIT
Repo
https://github.com/openemr/openemr
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ebb62eb3036a726314ab3e1c3e9263a41608b17b
Fixed
ba316dd1d8de1291102da3f20f64240729ff899e
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "8.3.0"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

Other
v2_7_2
v2_7_2-rc1
v2_7_2-rc2
v2_7_3-rc1
v2_8_0
v2_8_1
v2_8_2
v2_8_3
v2_9_0
v3_0_0
v3_0_1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40507.json"