Incomplete List of Disallowed Inputs Affecting ghost package, versions >=2.5.0 <6.64.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-GHOST-21693964
- published24 Oct 2026
- disclosed7 Oct 2026
- creditnhattanhh
Introduced: 7 Oct 2026
NewCVE-2026-104414 (opens in a new tab)How to fix?
Upgrade ghost to version 6.64.0 or higher.
Overview
ghost is a publishing platform
Affected versions of this package are vulnerable to Incomplete List of Disallowed Inputs via the oEmbed service (ghost/core/core/server/services/oembed/oembed-service.js) when handling photo-type oEmbed responses from arbitrary, self-declared oEmbed endpoints. Provider-supplied HTML from a photo response is stored in the post's Lexical payload and rendered into the admin editor preview via srcdoc and into public themes and emails via innerHTML, allowing an attacker who controls an oEmbed endpoint to inject arbitrary HTML and execute scripts in the context of a visitor's browser.