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6.4
CVE-2025-52133: Mocca Calendar: Malicious Calendar Titles Can Steal User Data
CVE-2025-52133 · published 1 year ago
Summary
If you use Mocca Calendar, an attacker can steal your login credentials and other sensitive information if they trick you into importing a calendar with a malicious title. This is a serious security risk. Update to the latest version, 2.15, to fix this issue.
Original advisory text
The Mocca Calendar application before 2.15 for XWiki allows XSS via a title upon calendar import.
The Mocca Calendar application before 2.15 for XWiki allows XSS via a title upon calendar import.
References
- https://extensions.xwiki.org/xwiki/bin/view/Extension/MoccaCalendar URL
- https://github.com/xwikisas/application-mocca-calendar/security/advisories/GHSA-... Vendor Advisory
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/52xxx/CVE-2025-52133... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-52133 Vendor Advisory
- https://github.com/xwiki-contrib/application-mocca-calendar Product
- https://github.com/xwikisas/application-mocca-calendar Product
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker partial control
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published3 Aug 2025
Updated4 Nov 2026
First seen7 Mar 2026
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