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Stored XSS on REDAXO 5.18.1 - Article / "content/edit"

Moderate
gharlan published GHSA-7wj8-856p-qc9m Feb 10, 2025

Package

REDAXO

Affected versions

>= 5.12.0-beta1, <= 5.18.1

Patched versions

5.18.2

Description

Summary

Stored XSS on REDAXO 5.18.1 - Article / "content/edit".

Details

On the latest version of Redaxo, v5.18.1, the article name field is susceptible to stored XSS.

PoC

If a user creates an article name (ie /redaxo/index.php?page=structure&category_id=1&article_id=1&clang=1&function=edit_art&artstart=0) using a xss payload such as "<BODY ONLOAD=alert('XSS!')>", the XSS executes:
image
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Impact

A malicious actor can easily steal cookie using this stored XSS and perform a session hijacking attack.
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First reported to info@redaxo.de yesterday.

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

CVE ID

CVE-2024-13209

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Learn more on MITRE.

Credits