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vuln-cve/data/2026/73xxx/CVE-2026-73428.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-73428",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-12T14:32:11.796Z",
"datePublished": "2026-08-13T22:04:19.121Z",
"dateUpdated": "2026-08-14T18:06:36.864Z"
},
"containers": {
"cna": {
"title": "Trix: Stored XSS via HTMLParser attribute injection on paste",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"lang": "en",
"description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.6,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/basecamp/trix/security/advisories/GHSA-53g2-mvcc-q9x3",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/basecamp/trix/security/advisories/GHSA-53g2-mvcc-q9x3"
},
{
"name": "https://github.com/basecamp/trix/pull/1293",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/basecamp/trix/pull/1293"
},
{
"name": "https://github.com/basecamp/trix/commit/9c0a993d9fc2ffe9d56b013b030bc238f9c0557c",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/basecamp/trix/commit/9c0a993d9fc2ffe9d56b013b030bc238f9c0557c"
},
{
"name": "https://github.com/basecamp/trix/releases/tag/v2.1.18",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/basecamp/trix/releases/tag/v2.1.18"
}
],
"affected": [
{
"vendor": "basecamp",
"product": "trix",
"versions": [
{
"version": "< 2.1.18",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-08-13T22:04:19.121Z"
},
"descriptions": [
{
"lang": "en",
"value": "Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.18, Trix is vulnerable to stored cross-site scripting when crafted HTML is pasted into the editor. HTMLParser processes a mock attachment in a `<span>` with an empty `data-trix-attachment=\"{}\"` value, causing data-trix-attributes to be applied to a plain string piece. StringPiece.fromJSON accepts an unvalidated href, allowing a javascript: URI to enter the document model and serialized HTML and execute when another user renders and clicks the content. Applications that apply server-side HTML sanitization can neutralize the payload on save. This issue is fixed in version 2.1.18."
}
],
"source": {
"advisory": "GHSA-53g2-mvcc-q9x3",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-08-14T17:39:35.455077Z",
"id": "CVE-2026-73428",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-08-14T18:06:36.864Z"
}
}
]
}
}