Cross-site Scripting (XSS) Affecting ghost package, versions <6.64.0-r0
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-MINIMOSLATEST-GHOST-19829984
- published16 Sept 2026
- disclosed17 Aug 2026
Introduced: 17 Aug 2026
CVE-2026-63670 (opens in a new tab)How to fix?
Upgrade Minimos:latest ghost to version 6.64.0-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ghost package and not the ghost package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
ApostropheCMS is an open-source Node.js content management system. Prior to 2.17.6, sanitizeHtml() can pass disallowed executable markup through packages/sanitize-html/index.js when textarea or xmp is included in allowedTags because a literal solidus after the raw-text end-tag name is treated as text by htmlparser2 and the ontext handler emits that content without escaping, while a browser parses the following img onerror markup as active HTML. This issue is fixed in version 2.17.6.
References
- https://www.cve.org/CVERecord?id=CVE-2026-63670
- https://github.com/advisories/GHSA-jxwj-j7wr-gfrw
- https://osv.dev/vulnerability/MINI-82jq-xgc6-v68c
- https://osv.dev/vulnerability/CVE-2026-63670
- https://github.com/apostrophecms/apostrophe/commit/eae1fb2b72ec5d1c27d0977509c6482a0408f725
- https://github.com/apostrophecms/apostrophe/pull/5501
- https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-jxwj-j7wr-gfrw