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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://github.com/IHTSDO/snowstorm/commit/575b555695811110dafe2fcea7dd2fd7e4bc…
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https://github.com/IHTSDO/snowstorm/commit/b8061add427c930b3030549e77aa23ec5957…
9119a7d8-5eab-497f-8521-727c672e3725
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026…
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https://www.cve.org/CVERecord?id=CVE-2026-66300
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