First published: Thu Sep 08 2022(Updated: )
XWiki Platform Applications Tag and XWiki Platform Tag UI are tag applications for XWiki, a generic wiki platform. Starting with version 1.7 in XWiki Platform Applications Tag and prior to 13.10.6 and 14.4 in XWiki Platform Tag UI, the tags document `Main.Tags` in XWiki didn't sanitize user inputs properly. This allowed users with view rights on the document (default in a public wiki or for authenticated users on private wikis) to execute arbitrary Groovy, Python and Velocity code with programming rights. This also allowed bypassing all rights checks and thus both modification and disclosure of all content stored in the XWiki installation. The vulnerability could be used to impact the availability of the wiki. On XWiki versions before 13.10.4 and 14.2, this can be combined with CVE-2022-36092, meaning that no rights are required to perform the attack. The vulnerability has been patched in versions 13.10.6 and 14.4. As a workaround, the patch that fixes the issue can be manually applied to the document `Main.Tags` or the updated version of that document can be imported from version 14.4 of xwiki-platform-tag-ui using the import feature in the administration UI on XWiki 10.9 and later.
Credit: security-advisories@github.com
Affected Software | Affected Version | How to fix |
---|---|---|
Xwiki | >=1.7<13.10.6 | |
Xwiki | >=14.0<14.4 |
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CVE-2022-36100 is classified as a medium severity vulnerability due to improper input validation in XWiki.
To fix CVE-2022-36100, update to XWiki Platform Applications Tag version 1.8 or later, or XWiki Platform Tag UI version 14.4 or later.
CVE-2022-36100 affects all XWiki versions starting from 1.7 until 13.10.6 and from 14.0 until 14.4.
CVE-2022-36100 exploits a lack of proper sanitization in the tags document Main.Tags of the XWiki platform.
Yes, a patch for CVE-2022-36100 is available in the newer versions of the affected XWiki applications.