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Xwiki EUVDEUVD-2025-201417

| CVE-2025-65036 HIGH
Missing Authorization (CWE-862)
2025-12-05 security-advisories@github.com
8.3
CVSS 3.1 · Vendor: github
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

Complete system compromise — the attacker gains the ability to install malware, steal data, create backdoors, or pivot to other systems on the network. With a CVSS score of 8.3 (HIGH), this represents a significant risk.

Exploit ScenarioDerived

An attacker sends a specially crafted request to the vulnerable service that triggers code execution with the privileges of the running process.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.7% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 15, 2026

XWiki Remote Macros provides XWiki rendering macros that are useful when migrating content from Confluence. Prior to 1.27.1, the macro executes Velocity from the details pages without checking for permissions, which can lead to remote code execution. This vulnerability is fixed in 1.27.1.

Earlier versions of this analysis (1)
v1 Mar 15, 2026 - 17:08 CVSS 8.3

RemediationAI

Apply vendor patches immediately. Restrict network access to vulnerable services. Implement network segmentation and monitoring for anomalous activity.

Affected VersionsENISA

xwiki-pro-macros < 1.27.1

Affected Packages

euvd xwiki_pro_macros fix: 1.27.1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Remote code execution allows an attacker to run arbitrary commands or code on the target system over a network without prior authentication. This vulnerability is classified as Missing Authorization (CWE-862).

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Severity by source

Vendor (github) PRIMARY 8.3 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Primary rating from Vendor (github) · only source for this CVE.

CVSS VectorVendor: github

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

Lifecycle Timeline

3
Analysis Updated
Apr 16, 2026 - 06:23 EUVD-patch-fix
executive summary
Patch available
Apr 16, 2026 - 05:29 EUVD
1.27.1
CVE Published
Dec 05, 2025 - 17:16 nvd
HIGH 8.3

Executive ViewAI

Why It Matters

XWiki Remote Macros versions before 1.27.1 contain a critical remote code execution vulnerability where Velocity templates execute without permission validation, allowing attackers to gain arbitrary code execution on affected systems. This impacts any organization using XWiki with Remote Macros enabled and poses immediate risk to data confidentiality, integrity, and system availability.

Business Impact: High
Compensating Controls

Apply vendor patch to version 1.27.1 or later. If immediate patching is not feasible, disable Remote Macros extension entirely until patch deployment can be completed, and restrict XWiki instance access to authenticated users only via network controls.

Threat Intelligence Overview

EPSS Score
0.7%
Top 28% exploitable
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.7%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
High

Priority Score

43
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +42
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

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