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Critical

XWiki Platform remote code execution from account via custom skins support

  • Disclosed: 10.04.2024
  • Updated: 11.10.2026 13:20

Impact

Any user who can edit any page like their profile can create a custom skin with a template override that is executed with programming right, thus allowing remote code execution.

To reproduce, as a user without edit, script or admin right, add an object of class XWiki.XWikiSkins to your profile. Name it whatever you want and set the Base Skin to flamingo. Add an object of class XWikiSkinFileOverrideClass and set the path to macros.vm and the content to:

#macro(mediumUserAvatar $username)
  #resizedUserAvatar($username 50)
  $services.logging.getLogger('Skin').error("I got programming: $services.security.authorization.hasAccess('programming')")
#end

Back to your profile, click Test this skin. Force a refresh, just in case. If the error "Skin - I got programming: true" gets logged, the installation is vulnerable.

Patches

This has been patched in XWiki 14.10.19, 15.5.4 and 15.10RC1.

Workarounds

We're not aware of any workaround except upgrading.

References

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.xwiki.platform:xwiki-platform-oldcore >= 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

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-cv55-v6rw-7r5v - 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 this entry
    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
    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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