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Download Monitor EUVDEUVD-2026-109224

| CVE-2026-112207 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-10-24 WPScan GHSA-q52q-7v6q-wrp3
7.1
CVSS 3.1 · Vendor: WPScan
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Attack ChainAIDerived

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

  1. Access
    Craft malicious link with attacker payload
  2. Delivery
    Deliver link to victim via phishing/social engineering
  3. Exploit
    Victim clicks link on affected site
  4. Execution
    Plugin fetches unvalidated resource client-side
  5. Persist
    Attacker JavaScript renders and executes in browser
  6. Impact
    Session/action abuse in site context

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 requires that a user be tricked into clicking an attacker-crafted link that is processed by Download Monitor's client-side link-fetching behavior (versions before 5.3.4), which does not validate that the clicked link belongs to the site before fetching it and rendering part of the response in the page. No authentication is required (PR:N), but exploitation is limited by the mandatory user interaction (UI:R) - the victim must actively click the malicious link - and by whether the victim visits a site running an affected version; there is no indication of a non-default configuration requirement. Updating to 5.3.4 is the vendor-provided fix.

Impact

Signals are coherent and point to a moderate, interaction-gated risk rather than an emergency. The supplied CVSS:3.1 vector (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L, base 7.1) describes a network-reachable, low-complexity, unauthenticated flaw whose exploitation nevertheless hinges on UI:R - a victim must be tricked into clicking a crafted link - so it is not a wormable or drive-by condition. EPSS is low at 0.24% (14th percentile), which aligns with a client-side XSS that needs social engineering and is not trivially mass-exploited. It is NOT in CISA KEV (no confirmation of active exploitation), and the exploit reference is a WPScan advisory entry that is not verified as working exploit code, so active exploitation and weaponization are unconfirmed. The vuln.today decision label is 'this_week', consistent with a patched, unauthenticated XSS in a popular plugin that warrants prompt but not emergency remediation. No contradictions between signals were found; the main limiter is the required user interaction, which keeps real-world risk below what the 7.1 score alone might suggest.

Exploit ScenarioDerived

An attacker crafts a malicious download/link URL and lures a site visitor or logged-in user into clicking it (e.g., via phishing, a forum post, or a comment). Because the plugin fetches the linked resource client-side without validating that it belongs to the site and renders part of the response, attacker-controlled JavaScript executes in the victim's browser in the site's context. A public PoC reference exists (WPScan advisory); it is not verified as working exploit code.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 24, 2026

Download Monitor, a WordPress plugin, fails to verify that a clicked link actually belongs to the site before fetching it client-side and injecting part of the response back into the page, producing a cross-site scripting condition in every release before 5.3.4. The flaw is remotely reachable without authentication (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C) but is gated by mandatory user interaction - an attacker must convince a victim to click a crafted link - and it crosses a trust boundary into the browser, so the injected script runs in the context of the affected WordPress site. A public PoC reference exists but is not verified as working exploit code, EPSS is only 0.24% (14th percentile), and there is no CISA KEV entry, so signals point to a moderate, interaction-gated risk rather than an emergency; the vendor fix is version 5.3.4.

RemediationAI

Upgrade the Download Monitor plugin to version 5.3.4, which is the vendor-released fix and the only complete remediation identified; verify the installed version through the WordPress plugins screen or WP-CLI (wp plugin list --name=download-monitor) and confirm the update actually applied on every site in the estate. Because exploitation requires the victim to click a crafted link, interim exposure reduction centers on that click path: sites that cannot be updated immediately should consider restricting who can post or embed links that flow into the plugin's download/link handling and warning editorial and administrative users not to follow unsolicited links while logged in, though neither removes the underlying sink and both carry the trade-off of limiting legitimate workflows. No workaround is described in the available sources beyond updating, and the vendor position should be treated as update-to-fix. Consult the WPScan advisory at https://wpscan.com/vulnerability/03d5e83b-3119-4862-b1be-8c6fe53f9963/ and the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-112207 for the official guidance.

Affected VersionsENISA

Download Monitor 0 <5.3.4

Affected Packages

euvd download_monitor fix: 5.3.4

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 root cause is CWE-79 (cross-site scripting), specifically the client-side variant: instead of server-side output encoding letting the bug slip through, the plugin takes a user-supplied link, requests it from the browser, and then renders a portion of the returned response into the current page without confirming that the target of the link is the site itself. Because the trust check on the URL is missing, an attacker-controlled endpoint can return content that the plugin splices into the DOM, and any script in that content executes with the privileges of the WordPress origin hosting Download Monitor. This is why the CVSS vector carries S:C (scope changed) - the vulnerable component is the plugin's client-side fetch/render logic, but the impacted component is the user's browser session on the hosting site. The supplied CPE (cpe:2.3:a:unknown:download_monitor:*:*:*:*:*:*:*:*) is a wildcard with an unresolved vendor field, so version pinning comes from the EUVD range (Download Monitor 0 through 5.3.3, i.e. before 5.3.4) rather than from CPE version constraints. The exact request/response handling that triggers the injection - which parameter, which response fragment, and which DOM sink - is not described in the available sources.

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Severity by source

Vendor (WPScan) PRIMARY 7.1 HIGH
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
vuln.today AI 7.1 HIGH

Network-reachable and unauthenticated (AV:N/PR:N) but needs the victim to click a crafted link (UI:R); XSS executing in the browser context crosses scope (S:C) with limited C/I/A.

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

Primary rating from Vendor (WPScan).

CVSS VectorVendor: WPScan

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

Lifecycle Timeline

3
Patch available
Oct 24, 2026 - 07:16 EUVD
CVE Published
Oct 24, 2026 - 06:00 cve.org
HIGH 7.1
CVE Published
Oct 24, 2026 - 06:00 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

The Download Monitor WordPress plugin before 5.3.4 does not properly validate that a clicked link belongs to the site before fetching it client-side and rendering part of the response in the page, which allows unauthenticated attackers to execute arbitrary JavaScript in the browser of any user who is tricked into clicking a crafted link.

Technical POC Analysis

Bug class: CWE-79 (Cross-Site Scripting) - specifically a reflected/DOM-based XSS reached through a cross-origin fetch.

Full technical POC analysis - root cause, step-by-step exploitation and patch breakdown - is part of the Pro and Business plans.

Executive ViewAI

Why It Matters

CVE-2026-112207 is a high-severity cross-site scripting vulnerability in the WordPress Download Monitor plugin that allows an attacker to inject malicious scripts into pages when a victim clicks a crafted link. This affects any WordPress site running Download Monitor versions before 5.3.4, and successful exploitation could lead to session hijacking, defacement, or theft of user data within the site's context. Leadership should prioritize patching because the plugin is widely used and the flaw, while requiring user interaction, poses a credible risk to site visitors and brand trust.

Business Impact: High
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.2%
Top 86% exploitable
Prevalence
Medium
popular WordPress download-management plugin, large but not universal install base
Exploit
POC
Public exploit code exists
Social Media
1
Sightings
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 Yes
EPSS 0.2%
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Partial

Priority Score

56
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

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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