CVE-2025-65091
Unknown Unknown - Not Provided
SQL Injection in XWiki Full Calendar Macro Allows Data Access, DoS

Publication date: 2026-01-10

Last updated on: 2026-01-10

Assigner: GitHub, Inc.

Description
XWiki Full Calendar Macro displays objects from the wiki on the calendar. Prior to version 2.4.5, users with the right to view the Calendar.JSONService page (including guest users) can exploit a SQL injection vulnerability by accessing database info or starting a DoS attack. This issue has been patched in version 2.4.5.
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Meta Information
Published
2026-01-10
Last Modified
2026-01-10
Generated
2026-06-16
AI Q&A
2026-01-10
EPSS Evaluated
2026-06-15
NVD
CVE-2025-65091
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
xwiki macro_fullcalendar to 2.4.5 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
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Executive Summary

CVE-2025-65091 is a critical SQL injection vulnerability in the Calendar.JSONService component of the XWiki macro-fullcalendar package. Before version 2.4.5, any user with permission to view the Calendar.JSONService page, including guest users, could exploit this vulnerability by injecting malicious SQL code. This allows attackers to access unauthorized database information or cause denial-of-service (DoS) attacks. The vulnerability arises because the service previously used unsafe query construction methods that allowed direct injection of user input into database queries. [2]

Impact Analysis

This vulnerability can have severe impacts including unauthorized access to sensitive database information, modification of data, and disruption of service through denial-of-service (DoS) attacks. Since no authentication is required and the attack complexity is low, attackers can remotely exploit this vulnerability without user interaction, potentially compromising confidentiality, integrity, and availability of the affected system. [2]

Mitigation Strategies

To mitigate this vulnerability immediately, you should upgrade the XWiki macro-fullcalendar package to version 2.4.5 or later where the issue is patched. Alternatively, as a workaround, you can remove the Calendar.JSONService page, but note that this will break some functionalities. These steps prevent exploitation by eliminating the vulnerable SQL injection vector. [2]

Compliance Impact

The vulnerability allows unauthorized users, including unauthenticated guests, to perform SQL injection attacks that can lead to unauthorized access, modification, or denial of service affecting database information. This high-impact exposure of sensitive data and potential service disruption can lead to non-compliance with data protection regulations such as GDPR and HIPAA, which require strict controls on data confidentiality, integrity, and availability. [2]

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