{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-73159", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "state": "PUBLISHED", "assignerShortName": "CIRCL", "dateReserved": "2026-08-11T08:45:56.986Z", "datePublished": "2026-08-11T08:45:59.398Z", "dateUpdated": "2026-08-11T08:45:59.398Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "cti-transmute", "repo": "https://github.com/MISP/cti-transmute", "vendor": "MISP", "versions": [{"lessThanOrEqual": "1.4.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Jeroen Pinoy"}, {"lang": "en", "type": "remediation developer", "value": "Christian Studer"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Affected versions of cti-transmute allow a tag's <code>icon</code> value to be stored and later interpolated into HTML through Vue's <code>v-html</code>. The helper <code>mapIcon()</code> previously constructed an HTML string directly from the icon value:</p>\n<p><code>&lt;i class=\"fas fa-${name}\"&gt;&lt;/i&gt;</code></p>\n<p>Because the icon is user-supplied, a crafted value could break out of the intended markup and inject attacker-controlled HTML. When the affected tag was later rendered, including on the administrative triage interface, the payload could execute in the viewer's browser.</p>\n<p>The patch mitigates the issue at multiple layers: <code>v-html</code> is replaced with Vue <code>:class</code> binding, <code>mapIcon()</code> now returns only a constrained FontAwesome class string, and the backend validates icons against the FontAwesome catalogue or a strict <code>[a-z0-9-]{1,40}</code> slug pattern before storing them.</p>"}], "value": "Affected versions of cti-transmute allow a tag's icon value to be stored and later interpolated into HTML through Vue's v-html. The helper mapIcon() previously constructed an HTML string directly from the icon value:\n\n\n<i class=\"fas fa-${name}\"></i>\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."}], "impacts": [{"capecId": "CAPEC-63", "descriptions": [{"lang": "en", "value": "CAPEC-63 Cross-Site Scripting (XSS)"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 5.1, "baseSeverity": "MEDIUM", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-08-11T08:45:59.398Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/MISP/cti-transmute/commit/cc13416d606d91d543ce1f1e41387750f8450153"}], "source": {"discovery": "UNKNOWN"}, "title": "cti-transmute Stored XSS via Crafted Tag Icon on Admin Triage Interface", "x_generator": {"engine": "Vulnogram 0.2.0"}}}}

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