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8.5

CVE-2022-36093: XWiki allows unauthorized user registration via wizard

CVE-2022-36093 · published 4 years ago
Summary

The XWiki web templates let attackers create user accounts even when registration is turned off, bypassing email verification. This can give them access to private wikis or write rights on public wikis, depending on default permissions. Update XWiki to the latest version or replace the xpart.vm file with the patched version to close the gap.

What to do
  • Update xwiki org.xwiki.platform:xwiki-platform-web-templates to version 13.10.5.
  • Update xwiki org.xwiki.platform:xwiki-platform-web to version 13.10.5.
  • Update xwiki org.xwiki.platform:xwiki-platform-web-templates to version 14.3-rc-1.
  • Update xwiki org.xwiki.platform:xwiki-platform-web to version 14.3-rc-1.
Affected software
Ecosystem VendorProductAffected versions
maven xwiki org.xwiki.platform:xwiki-platform-web-templates < 13.10.5
>= 14.0, < 14.3-rc-1
Fix: upgrade to 13.10.5
maven xwiki org.xwiki.platform:xwiki-platform-web >= 8.0-rc-1, < 13.10.5
>= 14.0, < 14.3-rc-1
Fix: upgrade to 13.10.5
– xwiki xwiki >= 8.0, < 13.10.5
>= 14.0, < 14.3
cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
Original advisory text
XWiki Platform Web Templates vulnerable to Unauthorized User Registration Through the Distribution Wizard
XWiki Platform Web Templates are templates for XWiki Platform, a generic wiki platform. By passing a template of the distribution wizard to the xpart template, user accounts can be created even when user registration is disabled. This also circumvents any email verification. Before versions 14.2 and 13.10.4, this can also be exploited on a private wiki, thus potentially giving the attacker access to the wiki. Depending on the configured default rights of users, this could also give attackers write access to an otherwise read-only public wiki. Users can also be created when an external authentication system like LDAP is configured, but authentication fails unless the authentication system supports a bypass/local accounts are enabled in addition to the external authentication system. This issue has been patched in XWiki 13.10.5 and 14.3RC1. As a workaround, one may replace `xpart.vm`, the entry point for this attack, by a patched version from the patch without updating XWiki.
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
8.5 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-287Improper Authentication
CWE-288Authentication Bypass Using Alternate Path
Timeline
Published8 Sep 2022
Updated4 Nov 2026
First seen6 Mar 2026
Sources
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