{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-103664 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-103664 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-103664 is a medium-severity cross-site scripting vulnerability in MISP, published on 1 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-103664 and fix it if it is affected.\n\nWhat it is: CVE-2026-103664 is a medium-severity cross-site scripting vulnerability in MISP, published on 1 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-103664 in the wild and no public exploit code.\n\nAffected product: MISP. 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-2026-103664/ (Markdown: https://insights.sbomify.com/CVE-2026-103664/index.md)","id":"CVE-2026-103664","markdown":"https://insights.sbomify.com/CVE-2026-103664/index.md","name":"CVE-2026-103664","record":{"aliases":["GHSA-66pp-jmhc-r9mv"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution","data_read","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"MISP threat sharing","requires_auth":"low_privilege","summary":"Reflected XSS in MISP allows attackers to execute arbitrary JavaScript in authenticated users' browsers via a crafted URL, potentially stealing session tokens.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CIRCL","cpe":[],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"MISP contains a reflected cross-site scripting (XSS) vulnerability in the analyst data notes panel. The seed path parameter, supplied by the user via the URL, was passed directly into inline JavaScript within the rendered HTML response without any sanitization or type enforcement.\n\nAn attacker who can convince an authenticated MISP user to navigate to a crafted URL (for example, via a phishing link) can inject arbitrary JavaScript that executes in the victim's browser context. This may allow the attacker to read session tokens, manipulate the page, or perform actions on behalf of the victim.\n\nPreconditions:\n\n- The victim must be authenticated to MISP and access the analyst data view for an attribute or object.\n\n- The attacker must supply a malicious seed value in the URL path.\n\nImpact:\n\n- Execution of arbitrary JavaScript in the victim's browser session.\n\n- Potential theft of session credentials or sensitive data visible in the page.\n\n- Manipulation of the analyst data interface.\n\nAffected: MISP versions prior to the fix (commit 58925dbf0, post v2.5.48).","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":"MISP Reflected Cross-Site Scripting via Unsanitized Analyst Data Seed Parameter","id":"CVE-2026-103664","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"The installer for Yamaha LAN Monitor for Windows provided by Yamaha Corporation may insecurely load Dynamic Link Libraries (DLLs).","id":"CVE-2026-103665"},"packages":[],"prev":{"headline":"Path Traversal leading to Remote Code Execution in Ollama","id":"CVE-2026-103663"},"products":["MISP"],"published":"2026-10-01","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":"2026-10-01","vendors":["MISP"]},"summary":"Reflected XSS in MISP allows attackers to execute arbitrary JavaScript in authenticated users' browsers via a crafted URL, potentially stealing session tokens.","url":"https://insights.sbomify.com/CVE-2026-103664/"}