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Path traversal in xwiki-platform-skin-skinx

Moderate severity GitHub Reviewed Published Feb 9, 2022 in xwiki/xwiki-platform • Updated Jun 27, 2023

Package

maven org.xwiki.platform:xwiki-platform-skin-skinx (Maven)

Affected versions

>= 6.2-rc-1, < 13.6

Patched versions

13.6

Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. AbstractSxExportURLFactoryActionHandler#processSx does not escape anything from SSX document reference when serializing it on filesystem, so it's easy to mess up the HTML export process with reference elements containing filesystem syntax like "../", "./". or "/" in general (the last two not causing any security threat, but can cause conflicts with others serialized files). Patch can be found in 13.6-rc-1. Giving script or subwiki admin right only to trusted people and disabling HTML/PDF export can be done as workaround.

References

@tmortagne tmortagne published to xwiki/xwiki-platform Feb 9, 2022
Published to the GitHub Advisory Database Feb 9, 2022
Reviewed Feb 9, 2022
Published by the National Vulnerability Database Feb 9, 2022
Last updated Jun 27, 2023

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
High
Privileges required
High
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
High

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:R/S:C/C:L/I:L/A:H

EPSS score

0.156%
(53rd percentile)

Weaknesses

CVE ID

CVE-2022-23620

GHSA ID

GHSA-7ph6-5cmq-xgjq

Source code

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