VDB-340408 · CVE-2025-65090 · GHSA-637h-ch24-xp9m

xwiki-contrib macro-fullcalendar up to 2.4.5 Calendar.JSONService information disclosure

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.2	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in xwiki-contrib macro-fullcalendar up to 2.4.5. This affects an unknown part of the file Calendar.JSONService. Executing a manipulation can lead to information disclosure. This vulnerability appears as CVE-2025-65090. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in xwiki-contrib macro-fullcalendar up to 2.4.5. This vulnerability affects an unknown code block of the file Calendar.JSONService. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

XWiki Full Calendar Macro displays objects from the wiki on the calendar. Prior to version 2.4.6, users with the rights to view the Calendar.JSONService page (including guest users) can exploit the data leak vulnerability by accessing database info, with the exception of passwords. This issue has been patched in version 2.4.6.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-65090 since 11/17/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

Upgrading to version 2.4.6 eliminates this vulnerability. Applying the patch 25bc14c181c9a92f493b20ac264388c7ba171884 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at EUVD (EUVD-2026-1700) and CERT Bund (WID-SEC-2026-0060). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

Open Source xwiki

Productinfo

Type

Calendar Software

Vendor

xwiki-contrib

Name

macro-fullcalendar

Version

License

open-source

Website

Product: https://github.com/xwiki-contrib/macro-fullcalendar/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (GitHub_M): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: macro-fullcalendar 2.4.6
Patch: 25bc14c181c9a92f493b20ac264388c7ba171884

Timelineinfo

11/17/2025 CVE reserved
01/10/2026 +54 days Advisory disclosed
01/10/2026 +0 days VulDB entry created
01/12/2026 +2 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-637h-ch24-xp9m
Status: Confirmed

CVE: CVE-2025-65090 (🔒)
GCVE (CVE): GCVE-0-2025-65090
GCVE (VulDB): GCVE-100-340408
EUVD: 🔒
CERT Bund: WID-SEC-2026-0060 - xwiki (Full Calendar Macro): Mehrere Schwachstellen

Entryinfo

Created: 01/10/2026 10:35
Updated: 01/12/2026 12:32
Changes: 01/10/2026 10:35 (68), 01/11/2026 01:49 (1), 01/12/2026 12:32 (7)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.