{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-79320", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-09-21T19:41:14.665Z", "dateReserved": "2026-08-25T00:00:00.000Z", "datePublished": "2026-09-21T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-09-21T19:41:14.665Z"}, "descriptions": [{"lang": "en", "value": "Stencil core 4.43.5 contains a DOM-based cross-site scripting (XSS) vulnerability in the component runtime. When a downstream application enables the experimental slot fixes option and uses scoped components, assigning a string to the textContent property of such a component's host element causes the value to be parsed as HTML instead of being inserted as text. If an application writes attacker-controlled data to these host elements, the data can be interpreted as markup and script can execute in the context of the application's origin."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://github.com/stenciljs/core"}, {"url": "https://github.com/lichoin/TraceLoom/blob/main/CVEs/CVE-2026-79320.md"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}}, "dataVersion": "5.2"}

{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Stencil core 4.43.5 contains a DOM-based cross-site scripting (XSS) vulnerability in the component runtime. When a downstream application enables the experimental slot fixes option and uses scoped components, assigning a string to the textContent property of such a component's host element causes the value to be parsed as HTML instead of being inserted as text. If an application writes attacker-controlled data to these host elements, the data can be interpreted as markup and script can execute in the context of the application's origin."}], "id": "CVE-2026-79320", "lastModified": "2026-09-21T20:17:32.823", "metrics": {}, "published": "2026-09-21T20:17:32.823", "references": [{"source": "cve@mitre.org", "url": "https://github.com/lichoin/TraceLoom/blob/main/CVEs/CVE-2026-79320.md"}, {"source": "cve@mitre.org", "url": "https://github.com/stenciljs/core"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received"}

{}

{"created": "2026-09-21T21:00:07.976404+00:00", "title": "DOM\u2011Based XSS via textContent Assignment in Stencil Core Component Runtime", "updated": "2026-09-21T21:00:07.976410+00:00", "vendors": [], "weaknesses": ["CWE-79"]}