{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-66300 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-66300 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-66300 is a low-severity cross-site scripting vulnerability in SNOMED International Snowstorm, published on 4 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-66300 and fix it if it is affected.\n\nWhat it is: CVE-2026-66300 is a low-severity cross-site scripting vulnerability in SNOMED International Snowstorm, published on 4 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-66300 in the wild and no public exploit code.\n\nAffected product: SNOMED International Snowstorm. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-66300/ (Markdown: https://insights.sbomify.com/CVE-2026-66300/index.md)","id":"CVE-2026-66300","markdown":"https://insights.sbomify.com/CVE-2026-66300/index.md","name":"CVE-2026-66300","record":{"aliases":["GHSA-hc58-x27q-7xc8"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"SNOMED Snowstorm","requires_auth":"none","summary":"Attackers can execute arbitrary JavaScript in user browsers via crafted links in SNOMED Snowstorm, potentially leading to session hijacking or data theft.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisa-cg","cpe":[],"cvss":{"score":2.3,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"SNOMED International Snowstorm reflected XSS","id":"CVE-2026-66300","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Microsoft Dynamics 365 (On-Premises) Information Disclosure Vulnerability","id":"CVE-2026-66301"},"packages":[],"prev":{"headline":"Apache Tomcat: DoS via WebSocket chat example","id":"CVE-2026-66299"},"products":["Snowstorm"],"published":"2026-08-04","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-04","vendors":["SNOMED International"]},"summary":"Attackers can execute arbitrary JavaScript in user browsers via crafted links in SNOMED Snowstorm, potentially leading to session hijacking or data theft.","url":"https://insights.sbomify.com/CVE-2026-66300/"}