This report was translated by AI; nobody has reviewed the translation yet. Original language: Czech.

[TLP:CLEAR] XWiki Full Calendar macro fixes 2 vulnerabilities

XWiki fixes 2 vulnerabilities in the Full Calendar macro with version 2.4.6 [1][2].

XWiki Full Calendar - SQL injection (CVE-2025-65091)
CVSS 10.0 (Critical)

Due to an SQL injection vulnerability in the Full Calendar macro, an unauthenticated remote attacker with permission to view the Calendar.JSONService page can gain full access to the information in the database or perform a DoS attack [1].

The vulnerability is present in product:

  • macro-fullcalendar; <2.4.5

CVSS: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

More information:

  • CVE-2025-65091 at cve.org, NVD
  • CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') at cwe.mitre.org

The vulnerability was publicly disclosed 10. 1. 2026.

XWiki Full Calendar - data leak (CVE-2025-65090)
CVSS 5.3 (Medium)

Due to a vulnerability in the Full Calendar macro, an unauthenticated remote attacker with permission to view the Calendar.JSONService page can obtain users' email addresses from the database [2].

The vulnerability is present in product:

  • macro-fullcalendar; <= 2.4.5

CVSS: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

More information:

The vulnerability was publicly disclosed 10. 1. 2026.


By CESNET, z.s.p.o. Michaela Jarošová on 13. 1. 2026.

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