CVE-2021-32620

### Impact
A user disabled on a wiki using email verification for registration can re-activate himself by using the activation link provided for his registration.

### Patches
The problem has been patched in the following versions of XWiki: 11.10.13, 12.6.7, 12.10.2, 13.0.

### Workarounds
It’s possible to workaround the issue by resetting the `validkey` property of the disabled XWiki users. This can be done by editing the user profile with object editor.

### References
https://jira.xwiki.org/browse/XWIKI-17942

### For more information
If you have any questions or comments about this advisory:
* Open an issue in [Jira](http://jira.xwiki.org)
* Email us at [Security mailing-list](mailto:[email protected])

Source: CVE-2021-32620