{"id":"CVE-2026-104906","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-104906","generatedAt":"2026-10-28T02:58:05.864Z","title":"MISP contains a cross-site scripting (XSS) vulnerability in the TAXII object viewer.","description":"MISP contains a cross-site scripting (XSS) vulnerability in the TAXII object viewer. When displaying a remote TAXII object, the JSON content of string properties was rendered directly into an HTML pre block without HTML-encoding. An attacker who can control or influence the content of a TAXII object (e.g., by publishing a malicious object to a TAXII server that the victim's MISP instance subscribes to) can inject arbitrary HTML or JavaScript that executes in the context of the victim's MISP session.\n\nPreconditions:\n\n- The victim must be an authenticated MISP user with access to the TAXII object viewer.\n\n- The victim must open or view the crafted TAXII object.\n\nImpact:\n\n- Execution of arbitrary JavaScript in the victim's browser within the MISP application context.\n\n- Potential theft of session tokens, API keys, or other sensitive data accessible from the MISP interface.\n\n- Potential for performing actions on behalf of the authenticated user.\n\nAffected versions: <2.5.48.","published":"2026-10-02T16:16:48.000Z","lastModified":"2026-10-02T17:17:05.000Z","status":"Deferred","sourceIdentifier":"5a6e4751-2f3f-4070-9419-94fb35b644e8","cvss":{"version":"4.0","score":6.2,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-79"],"affected":[],"epss":{"score":0.0036,"percentile":0.29492,"date":"2026-10-26","history":[{"date":"2026-10-03","score":0.0036,"percentile":0.27459}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.36%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-02T16:16:48.000Z","detail":{"score":"6.2","severity":"MEDIUM","publishedAt":"2026-10-02T16:16:48.010Z"},"summary":"New CVE, medium severity (CVSS 6.2)."}],"references":[{"url":"https://github.com/MISP/MISP/commit/1bed4ca0c","source":"5a6e4751-2f3f-4070-9419-94fb35b644e8"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-104906","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}