CVE-2021-32620: Users registered with email verification can self re-activate their disabled accounts

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-05-28 · updated 2026-06-17
Weakness: CWE-285

Description

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.

Affected products

xwiki-platform: from 11.6 before 11.10.13; from 12.0 before 12.6.7; from 12.7 before 12.10.2; from 12.10.3 before 13.0 — fixed in 11.10.13, 12.10.2, 12.6.7, 13.0

How to fix

Upgrade to a fixed version: xwiki-platform 11.10.13, 12.10.2, 12.6.7, 13.0. Check the vendor advisory for mitigations.

References

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