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Ghost has possible Cross-site Scripting issue

Moderate severity GitHub Reviewed Published Feb 11, 2024 to the GitHub Advisory Database • Updated Sep 5, 2024

Package

npm ghost (npm)

Affected versions

<= 5.76.0

Patched versions

None

Description

Ghost through 5.76.0 allows stored XSS, and resultant privilege escalation in which a contributor can take over any account, via an SVG profile picture that contains JavaScript code to interact with the API on localhost TCP port 3001. NOTE: The discoverer reports that "The vendor does not view this as a valid vector."

References

Published by the National Vulnerability Database Feb 11, 2024
Published to the GitHub Advisory Database Feb 11, 2024
Reviewed Feb 12, 2024
Last updated Sep 5, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

EPSS score

0.066%
(31st percentile)

Weaknesses

CVE ID

CVE-2024-23724

GHSA ID

GHSA-99vc-xw8j-phjm

Source code

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