XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Users without the right to view documents can deduce their existence by repeated Livetable queries. The issue has been patched in XWiki 14.6RC1, 13.10.8, and 14.4.3, the response is not properly cleaned up of obfuscated entries. As a workaround, The patch for the document XWiki.LiveTableResultsMacros can be manually applied or a XAR archive of a patched version can be imported, on versions 12.10.11, 13.9-rc-1, and 13.4.4. There are no known workarounds for this issue.
xwiki-platform-icon-ui is vulnerable to Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection'). Any user with view rights on commonly accessible documents including the icon picker macro can execute arbitrary Groovy, Python or Velocity code in XWiki due to improper neutralization of the macro parameters of the icon picker macro. The problem has been patched in XWiki 13.10.7, 14.5 and 14.4.2. Workarounds: The patch can be manually applied by editing IconThemesCode.IconPickerMacro in the object editor. The whole document can also be replaced by the current version by importing the document from the XAR archive of a fixed version as the only changes to the document have been security fixes and small formatting changes.
Impact
Any user (logged in or not) with access to the page XWiki.XWikiUserProfileSheet can enable or disable any user profile. This might allow to a disabled user to re-enable themselves, or to an attacker to disable any user of the wiki.
Patches
The problem has been patched in XWiki 13.10.7, 14.5RC1 and 14.4.2.
Workarounds
The problem can be patched immediately by editing the page XWiki.XWikiUserProfileSheet in the wiki and by performing the changes contained in https://github.com/xwiki/xwiki-platform/commit/5be1cc0adf917bf10899c47723fa451e950271fa.
References
https://github.com/xwiki/xwiki-platform/commit/5be1cc0adf917bf10899c47723fa451e950271fa https://jira.xwiki.org/browse/XWIKI-19792
For more information If you have any questions or comments about this advisory: Open an issue in JIRA Email us at security ML
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. It's possible to make XWiki create many new schemas and fill them with tables just by using a crafted user identifier in the login form. This may lead to degraded database performance. The problem has been patched in XWiki 13.10.8, 14.6RC1 and 14.4.2. Users are advised to upgrade. There are no known workarounds for this issue.
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with view rights on commonly accessible documents including the menu macro can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation due to improper escaping of the macro content and parameters of the menu macro. The problem has been patched in XWiki 14.6RC1, 13.10.8 and 14.4.3. The patch (commit 2fc20891) for the document Menu.MenuMacro can be manually applied or a XAR archive of a patched version can be imported. The menu macro was basically unchanged since XWiki 11.6 so on XWiki 11.6 or later the patch for version of 13.10.8 (commit 59ccca24a) can most likely be applied, on XWiki version 14.0 and later the versions in XWiki 14.6 and 14.4.3 should be appropriate.
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. When the reset a forgotten password feature of XWiki was used, the password was then stored in plain text in database. This only concerns XWiki 13.1RC1 and newer versions. Note that it only concerns the reset password feature available from the "Forgot your password" link in the login view: the features allowing a user to change their password, or for an admin to change a user password are not impacted. This vulnerability is particularly dangerous in combination with other vulnerabilities allowing to perform data leak of personal data from users, such as GHSA-599v-w48h-rjrm. Note that this vulnerability only concerns the users of the main wiki: in case of farms, the users registered on subwiki are not impacted thanks to a bug we discovered when investigating this. The problem has been patched in version 14.6RC1, 14.4.3 and 13.10.8. The patch involves a migration of the impacted users as well as the history of the page, to ensure no password remains in plain text in the database. This migration also involves to inform the users about the possible disclosure of their passwords: by default, two emails are automatically sent to the impacted users. A first email to inform about the possibility that their password have been leaked, and a second email using the reset password feature to ask them to set a new password. It's also possible for administrators to set some properties for the migration: it's possible to decide if the user password should be reset (default) or if the passwords should be kept but only hashed. Note that in the first option, the users won't be able to login anymore until they set a new password if they were impacted. Note that in both options, mails will be sent to users to inform them and encourage them to change their passwords.
XWiki Platform vulnerable to Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') in AttachmentSelector.xml. The issue can also be reproduced by inserting the dangerous payload in the height or alt macro properties. This has been patched in versions 13.10.7, 14.4.2, and 14.5. The issue can be fixed on a running wiki by updating XWiki.AttachmentSelector with the versions below: - 14.5-rc-1+: https://github.com/xwiki/xwiki-platform/commit/eb15147adf94bddb92626f862c1710d45bcd64a7#diff-e1513599ab698991f6cbba55d38f3f464432ced8d137a668b1f7618c7e747e23 - 14.4.2+: https://github.com/xwiki/xwiki-platform/commit/c02f8eb1f3c953d124f2c097021536f8bc00fa8d#diff-e1513599ab698991f6cbba55d38f3f464432ced8d137a668b1f7618c7e747e23 - 13.10.7+: https://github.com/xwiki/xwiki-platform/commit/efd0df0468d46149ba68b66660b93f31b6318515#diff-e1513599ab698991f6cbba55d38f3f464432ced8d137a668b1f7618c7e747e23