XWiki Full Calendar Macro vulnerable to data leak through Calendar.JSONService
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:
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
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.xwiki.contrib:macro-fullcalendar-pom | < 2.4.6 | 2.4.6 |
References
- https://github.com/xwiki-contrib/macro-fullcalendar/security/advisories/GHSA-637h-ch24-xp9m
- https://nvd.nist.gov/vuln/detail/CVE-2025-65090
- https://github.com/xwiki-contrib/macro-fullcalendar/commit/25bc14c181c9a92f493b20ac264388c7ba171884
- https://github.com/xwiki-contrib/macro-fullcalendar
- https://jira.xwiki.org/browse/FULLCAL-82
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
CWE-200- Platform
- Java / Kotlin (Maven)
- Package
org.xwiki.contrib:macro-fullcalendar-pom- Disclosed
- 09.01.2026
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-637h-ch24-xp9m - CC BY 4.0
Vulnerability history: org.xwiki.contrib:macro-fullcalendar-pom
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 01.2026 01.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- Medium 1
Disclosures per year
- 2026: 2
-
XWiki Full Calendar Macro vulnerable to data leak through Calendar.JSONService this entry
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