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Advanced File Manager CVE-2026-110365

| EUVDEUVD-2026-103420 MEDIUM
Missing Authorization (CWE-862)
2026-10-18 audit@patchstack.com GHSA-63w3-wv39-454r
6.5
CVSS 3.1 · Vendor: patchstack
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Reach WordPress site with vulnerable plugin
  2. Exploit
    Send request to unprotected file-manager action
  3. Execution
    Bypass missing authorization check
  4. Impact
    Perform unauthorized file operation

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.

Exploitation Conditions

Exploitation requires the target to run the WPExperts Advanced File Manager plugin (file-manager-advanced) at version 5.4.14 or earlier on a reachable WordPress site, and to send requests to the plugin action(s) whose access-control/authorization checks are missing or incorrectly configured. The official vector indicates no special privileges (PR:N) and no user interaction, but as a WordPress Missing Authorization (broken access control) issue, realistic exploitation frequently depends on holding a low-privileged authenticated account that can reach the plugin's handlers - defenders should confirm whether the vulnerable endpoint is exposed to unauthenticated requests or only to logged-in low-role users. Limiting factors: impact is capped at partial integrity and availability (no confidentiality loss), and the site must actually have this plugin installed and activated at an affected version.

Impact

This is a moderate-severity Missing Authorization flaw (CWE-862) in the WordPress Advanced File Manager plugin, rated CVSS 6.5 with a network vector (AV:N), low complexity (AC:L), no privileges (PR:N) and no user interaction (UI:N), but limited impact (C:N/I:L/A:L - no confidentiality loss, only partial integrity and availability). No EPSS score, CISA KEV listing, or public POC was provided in the intelligence set, so there is no public exploit identified at time of analysis and no evidence of active exploitation. The combination of network reachability and no-auth per the official vector would normally elevate priority, but the limited impact (no data disclosure, only partial integrity/availability) and absence of exploitation signals place this below critical. CONFLICT TO VERIFY: the official vector states PR:N (unauthenticated), yet CWE-862 Missing Authorization in WordPress plugins commonly requires at least a low-privileged authenticated account (e.g., subscriber) to reach the vulnerable action - the Patchstack 'Broken Access Control' classification often implies an authenticated actor escalating beyond their role. Treat the no-auth claim with caution and verify against the Patchstack advisory before assuming fully unauthenticated exploitation.

Exploit ScenarioDerived

An attacker with network access to a WordPress site running Advanced File Manager ≤5.4.14 sends requests to a plugin endpoint whose authorization checks are missing or misconfigured, performing file-management actions they should not be permitted to execute. Because impact is limited to partial integrity and availability (I:L/A:L), the attacker could alter or disrupt managed files rather than fully compromise the site or read sensitive data. No public exploit code is identified, so exploitation would require independent development against the plugin's access-control logic.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet

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AnalysisAIv1 – Oct 18, 2026

Missing authorization in WPExperts Advanced File Manager through 5.4.14 allows network attackers to reach plugin actions that lack proper access-control checks, with limited integrity and availability impact and no confidentiality loss. The Patchstack advisory tags the issue as an authentication bypass; the published CVSS base is 6.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L), while the independent assessment rates it PR:L and cautions that realistic exploitation often requires a low-privileged authenticated WordPress account that can access the vulnerable handlers. No public exploit identified at time of analysis, and no CISA KEV active-exploitation confirmation was provided.

RemediationAI

No exact fixed version is identified in the provided input, so site owners should monitor the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/file-manager-advanced/vulnerability/wordpress-advanced-file-manager-plugin-5-4-14-broken-access-control-vulnerability?_s_id=cve and apply the vendor's patched Advanced File Manager release as soon as it is available beyond 5.4.14. If an immediate update is not possible, deactivate the file-manager-advanced plugin when its file-management features are not essential, recognizing that this removes functionality; alternatively, restrict access to the plugin's WordPress action endpoints (admin-ajax.php/admin-post.php actions and any plugin-specific routes) through a WAF or webserver rule, and limit exposure to trusted roles, accepting that blocking legitimate low-privileged workflows may be required. Because the independent assessment notes uncertainty about unauthenticated versus low-privileged access, verify whether the vulnerable handlers are reachable without login and tighten role/capability exposure accordingly.

Affected VersionsENISA

Advanced File Manager 0 ≤5.4.14

Affected Packages

euvd advanced_file_manager no fix

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

The affected component is the WordPress plugin file-manager-advanced (Advanced File Manager), which exposes administrative file-management functionality through WordPress request handlers. The flaw is CWE-862 Missing Authorization: the plugin does not correctly enforce capability or permission checks on one or more actions, so callers can invoke functionality that should be restricted to higher-privileged users. The supplied CPE data does not include a CPE string, so scope is determined from the plugin slug and version range rather than NVD CPE matching. The 'Authentication Bypass' tag and Patchstack advisory indicate broken access control, but the official PR:N vector and the independent PR:L assessment differ on whether unauthenticated requests can reach the vulnerable endpoint; that must be verified against the site's plugin configuration and exposed handlers.

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Severity by source

Vendor (patchstack) PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
vuln.today AI 5.4 MEDIUM

Network-reachable broken access control in a WordPress plugin typically needs a low-privileged authenticated user (PR:L), not PR:N; impact limited to partial integrity/availability with no confidentiality loss.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (patchstack).

CVSS VectorVendor: patchstack

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

DescriptionCVE.org

Missing Authorization vulnerability in WPExperts Advanced File Manager file-manager-advanced allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Advanced File Manager: from n/a through 5.4.14.

Threat Intelligence Overview

Prevalence
Medium
popular WordPress file-management plugin, common but not universal
Data Quality
3 sources
Confidence: Low

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 MEDIUM
CISA KEV No
Public POC No
EPSS N/A
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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
Yes
Human Impact· derived
Medium

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
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.

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