{"id":"CVE-2026-73159","aliases":["EUVD-2026-55979","GHSA-3vx2-8r8r-pf7r"],"status":"published","title":"cti-transmute Stored XSS via Crafted Tag Icon on Admin Triage Interface","description":"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-${name}\"\u003e\u003c/i\u003e\n\n\nBecause the icon is user-supplied, a crafted value could break out of the intended markup and inject attacker-controlled HTML. When the affected tag was later rendered, including on the administrative triage interface, the payload could execute in the viewer's browser.\n\n\nThe patch mitigates the issue at multiple layers: v-html is replaced with Vue :class binding, mapIcon() now returns only a constrained FontAwesome class string, and the backend validates icons against the FontAwesome catalogue or a strict [a-z0-9-]{1,40} slug pattern before storing them.","severity":{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00396,"percentile":0.34163,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-08-11T08:45:59Z","modified":"2026-10-28T02:30:27Z","products":[{"vendor":"misp","product":"cti-transmute"}],"references":[{"url":"https://github.com/MISP/cti-transmute/commit/cc13416d606d91d543ce1f1e41387750f8450153","tags":["patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73159","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-3vx2-8r8r-pf7r"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73159.json","tags":["advisory"]},{"url":"https://github.com/MISP/cti-transmute","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-73159","title":"cti-transmute Stored XSS via Crafted Tag Icon on Admin Triage Interface","description":"Affected versions of cti-transmute allow a tag's icon value to be stored and later interpolated into HTML through Vue's v-html. The helper mapIcon() previously constructed an HTML string directly from the icon value:\n\n\n\u003ci class=\"fas fa-${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.","status":"published","published":"2026-08-11T08:45:59.398Z","modified":"2026-08-11T13:03:25.189Z","cvss":[{"version":"4.0","score":5.1,"vector":"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","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:43:22.599321Z"}],"euvd":[{"id":"EUVD-2026-55979","description":"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-${name}\"\u003e\u003c/i\u003e\n\n\nBecause the icon is user-supplied, a crafted value could break out of the intended markup and inject attacker-controlled HTML. When the affected tag was later rendered, including on the administrative triage interface, the payload could execute in the viewer's browser.\n\n\nThe patch mitigates the issue at multiple layers: v-html is replaced with Vue :class binding, mapIcon() now returns only a constrained FontAwesome class string, and the backend validates icons against the FontAwesome catalogue or a strict [a-z0-9-]{1,40} slug pattern before storing them.","status":"published","published":"2026-08-11T08:45:59Z","modified":"2026-08-11T13:03:25Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:02:00.294626Z"}],"ghsa":[{"id":"GHSA-3vx2-8r8r-pf7r","title":"Affected versions of cti-transmute allow a tag's icon value to be stored and later interpolated...","description":"Affected versions of cti-transmute allow a tag's icon value to be stored and later interpolated into HTML through Vue's v-html. The helper mapIcon() previously constructed an HTML string directly from the icon value:\n\n\n\u003ci class=\"fas fa-${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.","status":"published","published":"2026-08-11T09:32:35Z","modified":"2026-08-11T09:32:42Z","cvss":[{"version":"4.0","score":5.1,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:10:17.025827Z"}],"nvd":[{"id":"CVE-2026-73159","description":"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-${name}\"\u003e\u003c/i\u003e\n\n\nBecause the icon is user-supplied, a crafted value could break out of the intended markup and inject attacker-controlled HTML. When the affected tag was later rendered, including on the administrative triage interface, the payload could execute in the viewer's browser.\n\n\nThe patch mitigates the issue at multiple layers: v-html is replaced with Vue :class binding, mapIcon() now returns only a constrained FontAwesome class string, and the backend validates icons against the FontAwesome catalogue or a strict [a-z0-9-]{1,40} slug pattern before storing them.","status":"published","published":"2026-08-11T09:17:14.897Z","modified":"2026-10-24T15:10:00.19Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:36.499002Z"}],"osv":[{"id":"CVE-2026-73159","title":"cti-transmute Stored XSS via Crafted Tag Icon on Admin Triage Interface","description":"Affected versions of cti-transmute allow a tag's icon value to be stored and later interpolated into HTML through Vue's v-html. The helper mapIcon() previously constructed an HTML string directly from the icon value:\n\n\n\u003ci class=\"fas fa-${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.","status":"published","published":"2026-08-11T08:45:59.398Z","modified":"2026-10-28T02:30:27.401166869Z","cvss":[{"version":"4.0","score":5.1,"vector":"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","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:45:15.88521Z"}]}}