XWiki Full Calendar Macro vulnerable to data leak through Calendar.JSONService

MEDIO 5.3CVE-2025-65090 · GHSA-637h-ch24-xp9m · Published 10/01/2026 · updated 17/06/2026

Package	Affected versions	Patched versions
org.xwiki.contrib:macro-fullcalendar-pom Maven	`< 2.4.6`	`2.4.6`
full calendar macro xwiki	`< 2.4.6`	`2.4.6`

Description

Impact

Anyone who has view rights on the Calendar.JSONService page, including guest users can exploit this vulnerability by accessing database info, with the exception of passwords.

Workarounds

Remove the Calendar.JSONService page. This will however break some functionalities.

References

Jira issue:

FULLCAL-82: Calendar.JSONService exposes emails of all users

For more information

If you have any questions or comments about this advisory:

Open an issue in Jira XWiki.org
Email us at Security Mailing List

NVD description

XWiki Full Calendar Macro displays objects from the wiki on the calendar. Prior to version 2.4.6, users with the rights to view the Calendar.JSONService page (including guest users) can exploit the data leak vulnerability by accessing database info, with the exception of passwords. This issue has been patched in version 2.4.6.

References

xwiki-contrib/macro-fullcalendar security advisory · WEB
nvd.nist.gov/vuln/detail/CVE-2025-65090 · ADVISORY
xwiki-contrib/macro-fullcalendar commit 25bc14c · WEB
xwiki-contrib/macro-fullcalendar · PACKAGE
jira.xwiki.org/browse/FULLCAL-82 · WEB

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