Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 5.4 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0021, the 10th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
Sources
- GitHub Advisory Database: GHSA-g366-23fw-ggp6
- OSV: GHSA-g366-23fw-ggp6
- github.com/TryGhost/Ghost/security/advisories/GHSA-g366-23fw-ggp6
- nvd.nist.gov/vuln/detail/CVE-2026-53946
- github.com/TryGhost/Ghost/pull/26753
- github.com/TryGhost/Ghost/commit/ba692df7f27162d0440d57487f16c530416a8eb2
- github.com/TryGhost/Ghost
- github.com/TryGhost/Ghost/releases/tag/v6.21.1