{"id":"CVE-2026-104906","title":"MISP contains a cross-site scripting (XSS) vulnerability in the TAXII object viewer","summary":"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 atta…","severity":"medium","cvss":6.2,"cvssVector":"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","cwe":["CWE-79"],"vendor":"MISP","product":"MISP","affected":["MISP < 2.5.48"],"published":"2026-10-02","updated":"2026-10-02","sourceUpdated":"2026-10-02T17:17:04.633","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-104906","references":[{"url":"https://github.com/MISP/MISP/commit/1bed4ca0c","label":"5a6e4751-2f3f-4070-9419-94fb35b644e8"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-02T16:17:09.468515Z"},"cvssSource":"cna","ingestedAt":"2026-10-02T16:22:59.529Z","slug":"CVE-2026-104906","body":"## Overview\n\nMISP 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":34.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}