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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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Fixes
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Workaround
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References
History
Mon, 21 Sep 2026 19:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
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MITRE
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-09-21T19:41:14.665Z
Reserved: 2026-08-25T00:00:00.000Z
Link: CVE-2026-79320
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses
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