49/100 CVSS 8.8 🔴 CVE ANALYSISPublished: July 15, 2026

@andrea9293/mcp-documentation-server: Web UI API binds to all interfaces without authentication by default

### Summary `@andrea9293/mcp-documentation-server` v1.13.0 documents that a Web UI starts automatically on port `3080`. However, the Web UI/API appears to bind to all network interfaces by default (`*:3080` / `0.0.0.0:3080`) instead of localhost-only, and its document-management API endpoints do not require authentication. As a result, any network-...

8.8

CVSS Score

MEDIUM

Threat Level

Priority /100

TBD

Exploited ITW

Monitor

CISA Status

Sources

🔵

HIGH-PRIORITY SECURITY ADVISORY — Priority Score: 49/100

CVSS 8.8 MEDIUM. SENTINEL APEX recommends immediate patch evaluation. Intelligence from 1 confirmed source(s).

📋 Executive Summary

⚡ Analyst Assessment — SENTINEL APEX v4.0

This report analyzes CVE-2026-54504 affecting npm @andrea9293/mcp-documentation-server (CVSS 8.8, MEDIUM severity). No confirmed in-the-wild exploitation at the time of writing; prioritize on exposure, privilege, and CVSS. Corroborated across 1 source(s): github_advisories. Verify all specifics against the primary sources linked below before acting.

Intelligence sources: github_advisories

🧮 Severity Anatomy — CVSS 3.1 vector, decoded from the primary record

The base score summarizes severity in one number; the vector explains why. Each row below is a direct read of the official CVSS vector — verifiable against the NVD record.

Metric	Value	What it means for defenders
Attack Vector	Adjacent `AV:A`	Requires same physical/logical network (LAN, Bluetooth, adjacent subnet).
Attack Complexity	Low `AC:L`	No special conditions — reliably repeatable by an attacker.
Privileges Required	None `PR:N`	No authentication needed — pre-auth exploitation.
User Interaction	None `UI:N`	No victim action required — fully automatable.
Scope	Unchanged `S:U`	Impact confined to the vulnerable component.
Confidentiality Impact	High `C:H`	Total loss of confidentiality — full data disclosure possible.
Integrity Impact	High `I:H`	Total loss of integrity — attacker can modify any data.
Availability Impact	High `A:H`	Total loss of availability — full denial of service possible.

🧬 Weakness Anatomy — CWE-306, the underlying flaw class

This vulnerability is classified as CWE-306: Missing Authentication for Critical Function in the primary record. The mechanics below are characteristic of this weakness class (per the MITRE CWE corpus), not a claim about a specific exploit observed against your environment.

How it's exploited	A sensitive function is exposed without requiring authentication, allowing anonymous access.
Detect & prevent	Require authentication on all sensitive endpoints; segment management interfaces. Detect via unauthenticated hits to admin/critical paths.

⚠️ Business Impact Analysis

⚠️ npm @andrea9293/mcp-documentation-server users face material security risk requiring immediate remediation

🔗 Representative Attack Path

A typical attack path for this vulnerability class, mapped to MITRE ATT&CK. This is a representative model to guide detection and defense — not a claim of observed activity against a specific target. Confirm specifics against the primary sources below.

#	Phase	Attacker Action	MITRE
1	Reconnaissance	Attacker identifies exposed @andrea9293/mcp-documentation-server instances via Shodan, Censys, or targeted scanning	`TA0043`
2	Initial Access	Exploitation of CVE-2026-54504 in npm @andrea9293/mcp-documentation-server	`T1190`
3	Persistence	Backdoor, scheduled task, or new admin account created for persistent access	`T1053`
4	Command & Control	Attacker establishes persistent C2 channel using HTTPS or DNS tunneling	`T1071`
5	Impact / Objectives	Intellectual property theft, espionage, cryptomining, or preparation for future attack stage	`T1657`

⚠ Deep Dive Analysis

This high-severity vulnerability in npm @andrea9293/mcp-documentation-server (CVSS 8.8) represents a significant attack surface. SENTINEL APEX assesses exploitation to be technically feasible with moderate effort. Organizations running @andrea9293/mcp-documentation-server in internet-facing or privileged positions face immediate risk.

SENTINEL APEX URGENCY: HIGH. Score: 49/100 MEDIUM. Patch before exploitation activity begins.

🧠 Structured Intelligence Assessment

SENTINEL APEX analytical tradecraft separates verified fact from labeled assessment and states intelligence gaps explicitly. Confidence reflects evidentiary support, not certainty.

✔ Verified Facts

Affected CVE(s): CVE-2026-54504, CVE-2026-54504.
Affected technology: npm @andrea9293/mcp-documentation-server.
CVSS base score of 8.8 assigned by an authoritative source.
1 indicator(s) of compromise extracted from source reporting.

🕸️ Correlated Observations

Vendor npm has been targeted in 13 prior CYBERDUDEBIVASH reports (recurring target)

🧩 Analyst Assessments

MEDIUM CONF Technical severity is assessed as high (CVSS 8.8); realized business impact depends on asset exposure and data classification.

❓ Intelligence Gaps

In-the-wild exploitation is unconfirmed as of this report.
Attribution to a specific threat actor is not established by the available evidence.
The source lacks sufficient technical detail for confident MITRE ATT&CK mapping.

🔮 Forward Outlook

MEDIUM CONF Given the repeated targeting pattern, further activity against this vendor/sector is probable.

🧬 Prior Intelligence Context

This report is correlated against CYBERDUDEBIVASH SENTINEL APEX's persistent analyst memory. The following entities have been tracked in prior intelligence:

Vendor npm — previously observed 13 times in CYBERDUDEBIVASH intelligence since 2026-07-06 (recent: obsidian-local-rest-api-authenticated-path-traversal-via-ur, cve-2026-50272-npm-dd-trace)
IP 0.0.0.0 — previously observed 2 times in CYBERDUDEBIVASH intelligence since 2026-07-06 (recent: cve-2026-55786-pip-flyto-core, clauster-non-loopback-deployments-can-serve-the-dashboard-u)

🎯 MITRE ATT&CK Mapping

Category	Mapping
Primary Tactic	Initial Access
Primary Technique	T1190 — Exploit Public-Facing Application
Sub-Technique	T1203 — Exploitation for Client Execution
Weakness (CWE)	CWE-306
Intel Type	🔴 CVE ANALYSIS
Source(s)	github_advisories

🔴 CVE Reference

CVE ID	Reference	Score
CVE-2026-54504	NVD →	8.8
CVE-2026-54504	NVD →	8.8

🏷️ Indicators of Compromise — Enriched IOC Feed

Normalized IOCs with confidence scoring. Block immediately across all enforcement points. SOC Pro subscribers receive enriched IOC bundles with full attribution and STIX/TAXII feeds.

Indicator Value	Type	Confidence	First Seen
0.0.0.0	ipv4	88%	2026-07-15

🔍 Detection Rules — Sigma (SIEM)

Deploy to Splunk, Elastic, Microsoft Sentinel, or QRadar. SOC Pro subscribers receive pre-compiled SIEM-native query packs updated with each pipeline run.

Sigma YAMLtitle: CVE-2026-54504 Exploitation Attempt — npm @andrea9293/mcp-documentation-server
id: adb53f430b51ce16-d2ab
status: experimental
description: Detects exploitation of CVE-2026-54504 in npm @andrea9293/mcp-documentation-server. Priority: MEDIUM. Score: 49/100
author: CYBERDUDEBIVASH SENTINEL APEX v4.0 (bivash@cyberdudebivash.com)
date: 2026-07-15
references:
    - https://nvd.nist.gov/vuln/detail/CVE-2026-54504
    - https://blog.cyberdudebivash.in/
tags:
    - attack.initial_access
    - attack.t1190
    - cve-2026-54504
    - cve-2026-54504
logsource:
    category: webserver
detection:
    keywords:
        - 'CVE-2026-54504'
        - 'CVE-2026-54504'
        - 'cve-2026-54504'
    condition: keywords
falsepositives:
    - Security scanners
level: high

📡 Detection Rules — YARA (Endpoint)

Deploy to endpoint detection platforms. Enterprise subscribers receive tuned, FP-validated YARA rule packs.

YARArule CVE_2026_54504_Exploitation {
    meta:
        description = "Detects artifacts related to CVE-2026-54504 exploitation in npm @andrea9293/mcp-documentation-server"
        author      = "CYBERDUDEBIVASH SENTINEL APEX v4.0"
        date        = "2026-07-15"
        severity    = "HIGH"
        cvss        = "8.8"
        priority    = "49/100"
        threat_level = "MEDIUM"
        reference   = "https://nvd.nist.gov/vuln/detail/CVE-2026-54504"
    strings:
        $id_str  = "CVE-2026-54504" ascii nocase
        $product = "_andrea9293_mcp_documentation_server" ascii nocase wide
    condition:
        any of them
}

🧠 Multi-Platform Detection Engineering

Evidence-driven detections mapped to MITRE ATT&CK, generated by the SENTINEL APEX Detection Engine — one validated rule per technique across SIEM, EDR, and network platforms. SOC Pro subscribers receive these as deploy-ready rule packs with each pipeline run.

Network Detection — Suricata

Suricata IDS/IPSalert ip $HOME_NET any -> 0.0.0.0 any (msg:"CYBERDUDEBIVASH SENTINEL APEX - malicious IP 0.0.0.0"; classtype:trojan-activity; sid:9000001; rev:1;)

🎯 Multi-Audience Intelligence Products

This single analysis is packaged for every stakeholder — from the boardroom to the SOC — plus a machine-readable feed for API and MSSP integration. Enterprise & SOC Pro subscribers receive these as structured deliverables.

🏛 Executive Advisory — CISO / Security Leadership

Affected CVE(s): CVE-2026-54504, CVE-2026-54504.
Affected technology: npm @andrea9293/mcp-documentation-server.
CVSS base score of 8.8 assigned by an authoritative source.
1 indicator(s) of compromise extracted from source reporting.

Owner	Decision	Timeline
CISO / SOC Lead	Authorize response activation and detection deployment	Within 24h
Vulnerability Mgmt	Prioritize remediation/patching of npm assets	Within 7 days
Legal / Privacy	Assess regulatory notification obligations if in-scope data is at risk	Within 48h

📋 Board Brief

A high-severity cyber threat affects npm @andrea9293/mcp-documentation-server.
Technical severity is rated 8.8/10.
Primary exposure is operational disruption, data loss, and potential regulatory liability (e.g. GDPR, NIS2, DORA, SOC 2) where in-scope systems are affected.
Mitigation depends on vendor guidance and compensating controls.
Recommended posture: authorize prioritized remediation and confirm detection coverage with the security team.

🛡 SOC Bulletin

Severity HIGH · Detection coverage: 0 technique(s) across behavioral analytics · 1 network rule(s)

P0: Block all 1 IOC(s) at firewall, proxy, DNS, and EDR simultaneously.
P1: Load the 1 Suricata network rule(s) at IDS/IPS choke points.
P1: Sweep 14 days of telemetry for the mapped ATT&CK techniques.
P2: Update threat-intel platform and downstream detection feeds with confirmed indicators.

⎋ Machine-readable intelligence: this report is available as a structured JSON package (MITRE ATT&CK, IOCs, multi-platform detections, analyst assessments) at /api/intel/products/cve-2026-54504-npm-andrea9293-mcp-documentation-server.json — built for SIEM, SOAR, and MSSP integration.

🛡️ SOC Response Playbook

1IMMEDIATE (0-1hr): Identify all instances of @andrea9293/mcp-documentation-server in your environment via CMDB/asset inventory
2IMMEDIATE: Block all 1 IOCs in this report at firewall, proxy, DNS, and EDR simultaneously
3IMMEDIATE (0-1hr): Apply vendor patch — no maintenance window exception for MEDIUM threats
4IMMEDIATE (1-2hr): If no patch available: implement WAF rules, ACLs, or network-level compensating controls
5SHORT-TERM (2-4hr): Deploy Sigma detection rule to SIEM — validate alert generation in test environment
6SHORT-TERM (4-8hr): Review logs for exploitation indicators (anomalous @andrea9293/mcp-documentation-server requests, error spikes)
7SHORT-TERM (8-24hr): Hunt for post-exploitation: new admin accounts, scheduled tasks, lateral movement
8MONITOR: Subscribe to npm security advisories for patch updates
9ONGOING: Track SENTINEL APEX intelligence feed for follow-on campaigns targeting @andrea9293/mcp-documentation-server

📎 Intelligence References

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⚡ CYBERDUDEBIVASH SENTINEL APEX v4.0

Intelligence report generated by CYBERDUDEBIVASH SENTINEL APEX v4.0
Report ID: SENTINEL-CVE-2026-54504-2026-07-15 | Priority: 49/100 MEDIUM | Sources: 1
© 2026 CYBERDUDEBIVASH PRIVATE LIMITED
Republication requires written attribution to CYBERDUDEBIVASH SENTINEL APEX

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