CVE-2024-31981 – org.xwiki.platform:xwiki-platform-oldcore

Package

Manager: maven
Name: org.xwiki.platform:xwiki-platform-oldcore
Vulnerable Version: >=3.0.1 <14.10.20 || >=15.0-rc-1 <15.5.4 || >=15.6-rc-1 <15.10-rc-1

Severity

Level: Critical

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

EPSS: 0.33683 pctl0.96814

Details

XWiki Platform: Privilege escalation (PR) from user registration through PDFClass ### Impact Remote code execution is possible via PDF export templates. To reproduce on an installation, register a new user account with username `PDFClass` if `XWiki.PDFClass` does not exist. On `XWiki.PDFClass`, use the class editor to add a "style" property of type "TextArea" and content type "Plain Text". Then, add an object of class `PDFClass` and set the "style" attribute to `$services.logging.getLogger('PDFClass').error("I got programming: $services.security.authorization.hasAccess('programming')")`. Finally, go to `<host>/xwiki/bin/export/Main/WebHome?format=pdf&pdftemplate=XWiki.PDFClass`. If the logs contain "ERROR PDFClass - I got programming: true", the instance is vulnerable. ### Patches This vulnerability has been patched in XWiki 14.10.20, 15.5.4 and 15.10-rc-1. ### Workarounds If PDF templates are not typically used on the instance, an administrator can create the document `XWiki.PDFClass` and block its edition, after making sure that it does not contain a `style` attribute. Otherwise, the instance needs to be updated. ### References - https://jira.xwiki.org/browse/XWIKI-21337 - https://github.com/xwiki/xwiki-platform/commit/d28e21a670c69880b951e415dd2ddd69d273eae9

Metadata

Created: 2024-04-10T17:11:45Z
Modified: 2024-04-10T22:00:51Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/04/GHSA-vxwr-wpjv-qjq7/GHSA-vxwr-wpjv-qjq7.json
CWE IDs: ["CWE-862"]
Alternative ID: GHSA-vxwr-wpjv-qjq7
Finding: F039
Auto approve: 1