User Self-Reactivation Vulnerability in XWiki Platform

CVE-2021-32620 · HIGH Severity

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In versions prior to 11.10.13, 12.6.7, and 12.10.2, a user disabled on a wiki using email verification for registration canouldre-activate themself by using the activation link provided for his registration. The problem has been patched in the following versions of XWiki: 11.10.13, 12.6.7, 12.10.2, 13.0. It is 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.

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