{"id":"CVE-2026-73159","summary":"cti-transmute Stored XSS via Crafted Tag Icon on Admin Triage Interface","details":"Affected versions of cti-transmute allow a tag's icon value to be stored and later interpolated into HTML through Vue's v-html. The helper mapIcon() previously constructed an HTML string directly from the icon value:\n\n\n\u003ci class=\"fas fa-${name}\"\u003e\u003c/i\u003e\n\n\nBecause the icon is user-supplied, a crafted value could break out of the intended markup and inject attacker-controlled HTML. When the affected tag was later rendered, including on the administrative triage interface, the payload could execute in the viewer's browser.\n\n\nThe patch mitigates the issue at multiple layers: v-html is replaced with Vue :class binding, mapIcon() now returns only a constrained FontAwesome class string, and the backend validates icons against the FontAwesome catalogue or a strict [a-z0-9-]{1,40} slug pattern before storing them.","modified":"2026-08-13T04:03:01.735340997Z","published":"2026-08-11T08:45:59.398Z","database_specific":{"cwe_ids":["CWE-79"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73159.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-2026-73159.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73159"},{"type":"FIX","url":"https://github.com/MISP/cti-transmute/commit/cc13416d606d91d543ce1f1e41387750f8450153"},{"type":"PACKAGE","url":"https://github.com/MISP/cti-transmute"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/misp/cti-transmute","events":[{"introduced":"0"},{"fixed":"cc13416d606d91d543ce1f1e41387750f8450153"}],"database_specific":{"source":"REFERENCES"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73159.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"}]}