Vulnerability · Published Aug 3, 2026 · Assigned by VulnCheck

CVE-2026-67612OpenEMR 8.2.0 Stored XSS via import_template.php Template Management

Medium 4.8

In plain English

A medium-severity cross-site scripting in openemr from openemr. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)4.8Medium

Exploit odds (30 days)0.3%top 83.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

OpenEMR through 8.2.0 contains a stored cross-site scripting vulnerability in the patient portal template system that allows authenticated administrators to inject arbitrary HTML and JavaScript by storing malicious payloads through the template save mode, which only filters literal PHP open tags. Attackers can exploit the lack of output encoding at the template retrieval endpoint combined with missing HttpOnly cookie attributes to exfiltrate session tokens via document.cookie access, enabling full session hijacking of any admin, clinician, or portal patient who views a poisoned template.

Affected products (as reported)

Vendor	Product	Versions
openemr	openemr	0 – through 8.2.0

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

References

Researcher Disclosure technical-description, exploit
https://www.vulncheck.com/advisories/openemr-stored-xss-via-import-template-php-template-management third-party-advisory