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Concrete CMS Stored Cross-site Scripting vulnerability

Low severity GitHub Reviewed Published Aug 12, 2024 to the GitHub Advisory Database • Updated Aug 20, 2024

Package

composer concrete5/concrete5 (Composer)

Affected versions

< 8.5.18
>= 9.0.0RC1, < 9.3.3

Patched versions

8.5.18
9.3.3

Description

Concrete CMS versions 9.0.0 to 9.3.2 and below 8.5.18 are vulnerable to Stored XSS in RSS Displayer when user input is stored and later embedded into responses. A rogue administrator could inject malicious code into fields due to insufficient input validation.

References

Published by the National Vulnerability Database Aug 12, 2024
Published to the GitHub Advisory Database Aug 12, 2024
Reviewed Aug 19, 2024
Last updated Aug 20, 2024

Severity

Low

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
High
Privileges required
High
User interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

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:H/PR:H/UI:N/S:C/C:L/I:N/A:N

EPSS score

0.052%
(21st percentile)

Weaknesses

CVE ID

CVE-2024-4350

GHSA ID

GHSA-q5wx-m95r-4cgc

Source code

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