CVE-2021-32731: The reset password form reveal users email address

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-07-01 · updated 2026-06-17
Weakness: CWE-200

Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Between (and including) versions 13.1RC1 and 13.1, the reset password form reveals the email address of users just by giving their username. The problem has been patched on XWiki 13.2RC1. As a workaround, it is possible to manually modify the `resetpasswordinline.vm` to perform the changes made to mitigate the vulnerability.

Affected products

xwiki-platform: 13.1, 13.1-rc1

References

https://github.com/xwiki/xwiki-platform/commit/0cf716250b3645a5974c80d8336dcdf885749dff#diff-14a3132e3986b1f5606dd13d9d8a8bb8634bec9932123c5e49e9604cfd850fc2
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-h4m4-pgp4-whgm
https://jira.xwiki.org/browse/XWIKI-18400
https://github.com/xwiki/xwiki-platform/commit/0cf716250b3645a5974c80d8336dcdf885749dff#diff-14a3132e3986b1f5606dd13d9d8a8bb8634bec9932123c5e49e9604cfd850fc2
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-h4m4-pgp4-whgm
https://jira.xwiki.org/browse/XWIKI-18400

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