CVE-2026-66300

SNOMED International Snowstorm contains a reflected XSS vulnerability within the "Web Route" redirection functionality. An attacker can inject arbitrary JavaScript which will execute upon a target user navigating to a crafted, malicious link. Fixed in 10.12.2 and 10.9.3.

CVSS v3 5.0 MEDIUM

5.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/IHTSDO/snowstorm/commit/575b555695811110dafe2fcea7dd2fd7e4bcee39
https://github.com/IHTSDO/snowstorm/commit/b8061add427c930b3030549e77aa23ec5957ceb6
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-212-01.json
https://www.cve.org/CVERecord?id=CVE-2026-66300

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-04 19:16

Updated : 2026-08-26 16:52

NVD link : CVE-2026-66300

Mitre link : CVE-2026-66300

CVE.ORG link : CVE-2026-66300

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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