Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessIdentify site using Frontend File Manager ≤ 23.6
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DeliveryInject XSS payload via plugin input
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ExploitLure/await admin to render page
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ExecutionExecute JavaScript in admin session
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ImpactHijack session or perform privileged actions
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation targets the N-Media Frontend File Manager plugin (versions ≤ 23.6) on WordPress, which by design exposes file-upload/management functionality to the site frontend - the feature set that introduces the unsanitized input. No authentication is required of the attacker (PR:N), but successful impact depends on a victim (typically a logged-in administrator or moderator) rendering the malicious content (UI:R), so the attacker must deliver a crafted link or get the payload displayed to a privileged user. Limiting factors: the site must have this specific plugin installed and active at an affected version, the frontend upload/display feature must be reachable, and a privileged user must interact with the attacker-supplied content for the scope-changing impact to matter. |
| Impact | This is a moderate-severity reflected/stored Cross-Site Scripting flaw (CWE-79) in the N-Media Frontend File Manager WordPress plugin. The supplied CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L, 7.1) indicates a network-reachable, low-complexity, unauthenticated attack that nonetheless requires victim user interaction and yields a changed scope with only Low confidentiality/integrity/availability impact - a profile typical of client-side XSS that escalates by hitting an admin session. Several key prioritization signals are MISSING: no EPSS score was provided, the vulnerability is NOT listed in CISA KEV, and no public proof-of-concept is referenced, so there is no evidence of active or automated exploitation. The only intelligence source is a single Patchstack advisory. Net assessment: this is a real but not urgent issue - the 'unauthenticated' + S:C combination makes it worth patching promptly because an attacker can target site administrators, but the UI:R requirement and absence of EPSS/KEV/POC signals place it well below critical actively-exploited bugs. Treat as a routine-but-prompt patch rather than an emergency. |
| Exploit ScenarioDerived | An unauthenticated attacker crafts a malicious URL or injects a payload through the plugin's frontend file-manager upload/display functionality, then lures a logged-in administrator into viewing it. When the admin's browser renders the unsanitized input, attacker-controlled JavaScript executes in the WordPress admin context (scope change), enabling session/cookie theft or admin actions. No public exploit code is referenced, so exploitation currently requires the attacker to develop the payload themselves. |
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Alert meAnalysisAIv1 – Oct 06, 2026
Unauthenticated cross-site scripting (CWE-79) in the N-Media Frontend File Manager WordPress plugin affects all versions up to and including 23.6, allowing remote attackers to inject arbitrary script that executes in the browser of any user who renders the crafted content. Because the plugin is designed to expose file upload and management functionality to the site frontend, the vulnerable input path is reachable without authentication (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L, score 7.1), but a victim - typically a logged-in administrator or moderator - must interact with the attacker-supplied link or page for the scope-changing impact to materialize. No public exploit code has been identified at time of analysis and the vulnerability is not listed in CISA KEV, so current risk is driven by the large installed base of a frontend-facing plugin rather than confirmed active exploitation.
RemediationAI
Update the Frontend File Manager plugin to a version newer than 23.6 as soon as the vendor publishes a fixed release, and verify the release notes against the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/nmedia-user-file-uploader/vulnerability/wordpress-frontend-file-manager-plugin-23-6-cross-site-scripting-xss-vulnerability. No vendor-released patch version is specified in the available data, so treat any 23.6-or-earlier install as exposed until a corrected build is confirmed. If an immediate upgrade is not possible, the most effective compensating control is to deactivate the plugin entirely - this removes the frontend upload/display surface and eliminates the injection point, at the cost of losing all file-manager functionality. Where the plugin must remain active, restrict access to its frontend upload and management pages (for example via IP allow-listing or WAF rules targeting the plugin's request paths), recognizing that this can break legitimate anonymous file submissions the plugin is designed to support. Deploying a WAF or content-security-policy rules that block inline and reflected script execution provides partial mitigation but can be bypassed and may interfere with legitimate plugin UI behavior. Because exploitation requires user interaction, warning privileged users not to open unsolicited links to the site's file-manager pages reduces the likelihood of a successful payload delivery, though it does not fix the underlying flaw.
Affected VersionsENISA
Affected Packages
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 N-Media "Frontend File Manager" plugin for WordPress, tracked by CPE cpe:2.3:a:n-media:frontend_file_manager:*:*:*:*:*:*:*:* and reported through Patchstack. The root cause is CWE-79 (Improper Neutralization of Input During Web Page Generation, i.e. Cross-Site Scripting): user-supplied input reaching the plugin's frontend upload/display routines is not properly encoded or sanitized before being written into an HTML response. Because the plugin by design exposes its file-upload and file-management surface to unauthenticated visitors on the site frontend, the injection point is reachable remotely (AV:N) with no privileges required of the attacker (PR:N). The CVSS vector's scope change (S:C) and low confidentiality, integrity and availability impact (C:L/I:L/A:L) reflect that script execution is confined to the victim's browser session but crosses a trust boundary - a successful payload can act with the victim's privileges on the WordPress site. The UI:R component captures the requirement that a privileged user must view the injected content for exploitation to succeed, which makes delivery of a crafted link or page the practical attack vector.
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Unauthenticated network-reachable XSS (AV:N/AC:L/PR:N) needing victim rendering (UI:R); script runs cross-context (S:C) with limited C/I/A impact typical of browser-side code execution.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
DescriptionCVE.org
Unauthenticated Cross Site Scripting (XSS) in Frontend File Manager <= 23.6 versions.
Executive ViewAI
Organizations running the N-Media Frontend File Manager WordPress plugin at version 23.6 or earlier are exposed to an unauthenticated cross-site scripting flaw that can compromise the browser session of a logged-in administrator or moderator. Because the plugin is deliberately built to expose file upload and management to public-facing pages, the vulnerable input path is reachable by any anonymous visitor, meaning the exposure scales with the breadth of the organization's WordPress estate. The business concern is that a single hijacked administrator session can yield full site control, content tampering, or credential theft, and no vendor patch is currently available.
No vendor-released patch identified at time of analysis. Interim mitigations: deactivate or remove the N-Media Frontend File Manager plugin on exposed sites (particularly version 23.6 or earlier); apply web application firewall or virtual patching rules to block script injection against the plugin's frontend upload and management endpoints; enforce a restrictive Content-Security-Policy header; restrict plugin shortcodes and upload forms to authenticated users only; enforce least privilege and multi-factor authentication for administrator and moderator accounts to limit the value of a hijacked session; and monitor session and authentication logs for anomalous administrator activity.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
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