{"id":"CVE-2026-73161","summary":"cti-transmute Conversion Table Allows XSS via Unescaped Cell Content During Search Highlighting","details":"Affected versions of cti-transmute improperly handle conversion-table values passed through the search highlighting feature. The highlight() function previously returned the underlying text directly when no search query was supplied, or performed a regex replacement that inserted \u003cmark\u003e tags without first escaping the original content. Because the resulting value is used by an HTML-rendering sink, malicious markup contained in conversion data could be interpreted as HTML rather than displayed as text.\n\nThe fix introduces a shared highlightMatches() helper that first converts special characters such as \u003c, \u003e, &, and quotes into HTML entities. Only after escaping does the code insert the application-controlled \u003cmark\u003e element used for search highlighting.","modified":"2026-08-13T04:03:01.626508131Z","published":"2026-08-11T09:07:53.955Z","database_specific":{"cwe_ids":["CWE-116","CWE-79"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73161.json","unresolved_ranges":[{"extracted_events":[{"last_affected":"1.4.0"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"CIRCL"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73161.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73161"},{"type":"FIX","url":"https://github.com/MISP/cti-transmute/commit/ac495641ef3ca927676a73ba8f1bcdfd952413df"},{"type":"PACKAGE","url":"https://github.com/MISP/cti-transmute"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/misp/cti-transmute","events":[{"introduced":"0"},{"fixed":"ac495641ef3ca927676a73ba8f1bcdfd952413df"}],"database_specific":{"source":"REFERENCES"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73161.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"}]}