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XWiki Platform vulnerable to RXSS via editor parameter - importinline template

Critical severity GitHub Reviewed Published May 9, 2023 in xwiki/xwiki-platform • Updated Nov 7, 2023

Package

maven org.xwiki.platform:xwiki-platform-distribution-war (Maven)

Affected versions

>= 2.2-milestone-1, < 14.4.8
>= 14.5, < 14.10.4

Patched versions

14.4.8
14.10.4

Description

Impact

It's possible to execute javascript with the right of any user by leading him to a special URL on the wiki targeting a page which contains an attachment.

To reproduce:

  • add an attachment to a page (for example, your user profile)
  • add ?xpage=importinline&editor=%22%3E%3Cimg%20src%20onerror=alert(document.domain)%3E to the page view URL as in https://myhost/xwiki/bin/view/XWiki/MyUser?xpage=importinline&editor=%22%3E%3Cimg%20src%20onerror=alert(document.domain)%3E

Patches

This has been patched in XWiki 15.0-rc-1, 14.10.4 and 14.4.8.

Workarounds

The easiest is to edit file <xwiki app>/templates/importinline.vm and apply the modification described on xwiki/xwiki-platform@28905f7

References

https://jira.xwiki.org/browse/XWIKI-20340
https://app.intigriti.com/company/submissions/e95a7ad5-7029-4627-abf0-3e3e3ea0b4ce/XWIKI-E93DFEYK

Attribution

This vulnerability has been reported on Intigriti by René de Sain @renniepak.

References

@tmortagne tmortagne published to xwiki/xwiki-platform May 9, 2023
Published by the National Vulnerability Database May 9, 2023
Published to the GitHub Advisory Database May 9, 2023
Reviewed May 9, 2023
Last updated Nov 7, 2023

Severity

Critical

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
High
Integrity
High
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:L/PR:L/UI:R/S:C/C:H/I:H/A:H

EPSS score

0.443%
(75th percentile)

Weaknesses

CVE ID

CVE-2023-32071

GHSA ID

GHSA-j9h5-vcgv-2jfm

Source code

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