CVE-2021-32620Network attack vector

Disabled-account reactivation via reusable email validation key

Published May 28, 2021 · Updated Aug 3, 2024

Improper authorization in XWiki Platform before 11.10.13, 12.6.7, and 12.10.2 allows attackers to reactivate disabled accounts. The validateUser method leaves the XWikiUsers validkey value intact after email verification, so the same key can later set disabled to false. Exploitation requires a previously registered account, email verification, a retained activation link, and later account disablement; access is restored only to that account.

CVSS severity8.8
High
EPSS probability1.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in XWiki Platform before 11.10.13, 12.6.7, and 12.10.2 allows attackers to reactivate disabled accounts. The validateUser method leaves the XWikiUsers validkey value intact after email verification, so the same key can later set disabled to false. Exploitation requires a previously registered account, email verification, a retained activation link, and later account disablement; access is restored only to that account.

The record

CVE
CVE-2021-32620
Published
May 28, 2021
Updated
Aug 3, 2024
Vendor
CryptPad
Product
XWiki Platform
Classifications
CWE-285, CWE-863, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 28, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 11.10.13
  2. Affected versionversion=>= 12.10.0, < 12.10.2
  3. Affected versionversion=>= 12.6.0, < 12.6.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CryptPad · XWiki Platformversion=< 11.10.13; version=>= 12.10.0, < 12.10.2; version=>= 12.6.0, < 12.6.7

Published CVSS scores

8.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0NISTAV:N/AC:L/Au:S/C:N/I:P/A:N
8.8NISTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
CWE-863Incorrect Authorization
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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