Detections
Analytics

SCA: security update for ghost (GHSA-944x-pm95-3jpr)

medium Tenable Self-Hosted Container Security Plugin ID 445646

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-53948)

Solution

Update the ghost library and its related packages to version 6.21.1 or later.

See Also

https://github.com/advisories/GHSA-944x-pm95-3jpr

Plugin Details

Severity: Medium

ID: 445646

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/5/2026

Updated: 8/5/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.5

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

CVSS Score Source: CVE-2026-53948

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/4/2026

Vulnerability Publication Date: 6/24/2026

Reference Information

CVE: CVE-2026-53948

cwe: CWE-434