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Critical

XWiki Platform: Privilege escalation (PR) from user registration through PDFClass

  • Disclosed: 10.04.2024
  • Updated: 11.10.2026 13:20

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

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.xwiki.platform:xwiki-platform-oldcore >= 3.0.1, < 14.10.20, >= 15.0-rc-1, < 15.5.4, >= 15.6-rc-1, < 15.10-rc-1 14.10.20, 15.5.4, 15.10-rc-1

References

CVSS score 9.9/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE)
CWE-862
Platform
Java / Kotlin (Maven)
Package
org.xwiki.platform:xwiki-platform-oldcore
Disclosed
10.04.2024
Updated
11.10.2026 13:20

Sources and licenses

OSV / GitHub Advisory Database - GHSA-vxwr-wpjv-qjq7 - CC BY 4.0

Vulnerability history: org.xwiki.platform:xwiki-platform-oldcore

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (46) in the archive
Total entries
46
First → latest
09.2020 07.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 12
  • High 17
  • Medium 15
  • Low 2

Disclosures per year

Severity:
  1. XWiki Platform Old Core: Resource path traversal via /skin/ action endpoint in Jetty 12+
    High CVE-2026-34151 < 17.10.5, >= 18.0.0-rc-1, < 18.2.0 17.10.5, 18.2.0
  2. XWiki vulnerable to remote code execution with script right through unprotected Velocity scripting API
    High CVE-2026-33229 >= 17.0.0-rc-1, < 17.4.8, >= 17.5.0-rc-1, < 17.10.1 17.4.8, 17.10.1
  3. XWiki exposes passwords and emails stored in fields not named password/email in xml.vm
    High CVE-2025-54125 >= 1.1, < 16.4.7, >= 16.5.0-rc-1, < 16.10.5, >= 17.0.0-rc-1, < 17.2.0-rc-1 16.4.7, 16.10.5, 17.2.0-rc-1
  4. XWiki leaks password hashes and other accessible password properties
    High CVE-2025-54124 >= 9.8-rc-1, < 16.4.7, >= 16.5.0-rc-1, < 16.10.5, >= 17.0.0-rc-1, < 17.2.0-rc-1 16.4.7, 16.10.5, 17.2.0-rc-1
  5. XWiki Platform vulnerable to SQL injection through XWiki#searchDocuments API
    High CVE-2025-54385 >= 1.0, < 16.10.6, >= 17.0.0-rc1, < 17.3.0-rc-1 16.10.6, 17.3.0-rc-1
  6. XWiki allows remote code execution through preview of XClass changes in AWM editor
    High CVE-2025-49586 >= 7.2-milestone-2, < 16.4.7, >= 16.5.0-rc-1, < 16.10.3, >= 17.0.0-rc-1, < 17.0.0 16.4.7, 16.10.3, 17.0.0
  7. XWiki allows SQL injection in query endpoint of REST API with Oracle
    Critical CVE-2024-56158 >= 1.0, < 15.10.16, >= 16.0.0-rc-1, < 16.4.7, >= 16.5.0-rc-1, < 16.10.2 15.10.16, 16.4.7, 16.10.2
  8. org.xwiki.platform:xwiki-platform-oldcore allows SQL injection in short form select requests through the script query API
    High CVE-2025-32968 >= 1.6-milestone-1, < 15.10.16, >= 16.0.0-rc-1, < 16.4.6, >= 16.5.0-rc-1, < 16.10.1 15.10.16, 16.4.6, 16.10.1
  9. XWiki Platform allows XSS through XClass name in string properties
    Critical · 9.0 CVE-2024-43400 >= 1.1.2, < 14.10.21, >= 15.0-rc-1, < 15.5.5, >= 15.6-rc-1, < 15.10.6, >= 16.0.0-rc-1, < 16.0.0 14.10.21, 15.5.5, 15.10.6, 16.0.0
  10. XWiki Platform allows remote code execution from user account
    Critical · 9.0 CVE-2024-37899 >= 13.4.7, < 14.10.21, >= 13.10.3, < 14.10.21, >= 15.0-rc-1, < 15.5.5, >= 15.6-rc-1, < 15.10.6, >= 16.0.0-rc-1, < 16.0.0 14.10.21, 15.5.5, 15.10.6, 16.0.0
  11. XWiki Platform remote code execution from account via custom skins support
    Critical · 9.9 CVE-2024-31987 >= 6.4-milestone-1, < 14.10.19, >= 15.0-rc-1, < 15.5.4, >= 15.6-rc-1, < 15.10-rc-1 14.10.19, 15.5.4, 15.10-rc-1
  12. XWiki Platform: Privilege escalation (PR) from user registration through PDFClass this entry
    Critical · 9.9 CVE-2024-31981 >= 3.0.1, < 14.10.20, >= 15.0-rc-1, < 15.5.4, >= 15.6-rc-1, < 15.10-rc-1 14.10.20, 15.5.4, 15.10-rc-1
  13. XWiki has no right protection on rollback action
    High · 8.0 CVE-2024-21648 >= 1.0, < 14.10.17 14.10.17
  14. XWiki Platform vulnerable to privilege escalation and remote code execution via the edit action
    High · 8.8 CVE-2023-46243 >= 15.0, < 15.2-rc-1, >= 1.0, < 14.10.6 15.2-rc-1, 14.10.6
  15. XWiki Platform vulnerable to remote code execution via the edit action because it lacks CSRF token
    Critical · 9.6 CVE-2023-46242 >= 1.0, < 14.10.7, >= 15.0, < 15.2-rc-1 14.10.7, 15.2-rc-1
  16. XWiki Platform vulnerable to CSRF privilege escalation/RCE via the create action
    High · 8.0 CVE-2023-40572 >= 3.2-milestone-3, < 14.10.9, >= 15.0-rc-1, < 15.4-rc-1 14.10.9, 15.4-rc-1
  17. Upgrading doesn't prevent exploiting vulnerable XWiki documents
    Critical · 9.9 CVE-2023-36468 >= 2.0, < 14.10.7, >= 15.0-rc-1, < 15.2-rc-1 14.10.7, 15.2-rc-1
  18. XWiki Platform vulnerable to reflected cross-site scripting via delattachment action
    High · 8.4 CVE-2023-35157 >= 3.2-milestone-3, < 14.10.6, >= 15.0-rc-0, < 15.1-rc-1 14.10.6, 15.1-rc-1
  19. XWiki Platform's async and display macro allow displaying and interacting with any document in restricted mode
    Critical · 9.9 CVE-2023-29526 >= 10.11.1, < 13.10.11, >= 14.0-rc-1, < 14.4.8, >= 14.5, < 14.10.3 13.10.11, 14.4.8, 14.10.3
  20. XWiki Platform vulnerable to code injection in display method used in user profiles
    Critical · 9.9 CVE-2023-29523 >= 3.3-milestone-1, < 13.10.11, >= 14.0-rc-1, < 14.4.8, >= 14.5, < 14.10.2 13.10.11, 14.4.8, 14.10.2
Show more (9) Showing 20 of 29

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