CVE-2026-53948 - CERT CVE
ID CVE-2026-53948
Sažetak Ghost is a Node.js content management system. From 6.19.4 until 6.21.1, insufficient validation of the client-supplied Content-Type on Ghost's Admin API file upload endpoint allowed uploaded files to be served from the site with an attacker-chosen content type on S3/GCS storage backends. On installations that serve uploaded files from the same origin as the site, this could have been used to facilitate stored cross-site scripting against site visitors or staff. This vulnerability is fixed in 6.21.1.
Reference
CVSS
Base: 5.4
Impact: 2.7
Exploitability:2.3
Pristup
VektorSloženostAutentikacija
NETWORK LOW LOW
Impact
PovjerljivostCjelovitostDostupnost
LOW LOW NONE
CVSS vektor CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Zadnje važnije ažuriranje 25-06-2026 - 16:07
Objavljeno 24-06-2026 - 19:17