Skip to main content

Front End Users CVE-2026-87835

| EUVDEUVD-2026-109230 MEDIUM
Improper Access Control (CWE-284)
2026-10-24 WPScan GHSA-jmq3-353m-7wg2
6.5
CVSS 3.1 · Vendor: WPScan
View

Attack ChainAIDerived

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

  1. Access
    Locate site with Front End Users registration form
  2. Exploit
    Submit registration with extra privileged attributes
  3. Execution
    Self-assign membership level and approved/confirmed/paid flags
  4. Impact
    Access gated/restricted content bypassing registration controls

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

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 site to have the Front End Users plugin's front-end registration form deployed and reachable by visitors, which is the plugin's intended use case; where that form is published, no authentication is needed (PR:N) and the attacker simply supplies account attributes - membership level and the approved/confirmed/paid flags - that the form fails to restrict. Limiting factors: the target must actually run this plugin (version ≤3.2.35) and expose its front-end registration, and the practical value depends on the site relying on the plugin's membership-level or approval/payment gating for content restriction; sites that do not use those gating features gain little benefit for the attacker. No specific platform, browser, or victim interaction is required beyond a crafted registration submission.

Impact

This is a genuine but moderate-priority issue rather than an urgent emergency. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) describes a network-reachable, low-complexity, unauthenticated flaw with no user interaction, which maps correctly to the described behavior: a visitor submitting the plugin's front-end registration form can set account attributes they should not control. However, the impact is scoped (C:L/I:L/A:N, score 6.5 MEDIUM) because the attacker elevates their own account's membership/approval state rather than achieving code execution or full account takeover. The supporting signals point to limited real-world urgency: EPSS is 0.20% (9th percentile), indicating low modeled exploitation probability; the vuln.today decision label is 'this_month' (not act_now/emergency); and there is no CISA KEV listing, so there is no confirmed active exploitation. The exploit signal is weak - a public PoC reference exists (the WPScan entry) but it is not verified as working exploit code. In short, the low EPSS, absence of KEV, and 'this_month' decision label are mutually consistent and argue against treating this as a drop-everything issue, while the unauthenticated network vector means it should still be patched on a normal cycle. No conflicting signals were observed; the main limitation is that the real install base of the plugin is not stated in the input.

Exploit ScenarioDerived

An attacker browsing a WordPress site that exposes the Front End Users registration form submits that form with extra account fields set, granting themselves an elevated membership level and marking their account as approved, confirmed and paid. They then access premium or restricted content that should have required manual approval or payment. A public PoC reference exists (WPScan) but is not verified as working exploit code, and the low complexity with no authentication means a request-forgery-style submission is straightforward where the form is deployed.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Oct 24, 2026

Unauthenticated visitors can self-assign an arbitrary membership level and set their own approved, confirmed and paid flags when registering through the front-end forms of the Front End Users WordPress plugin through 3.2.35, because the plugin does not restrict which account attributes a registrant may submit. Sites that rely on the plugin's membership-level or approval/payment gating for content restriction are the ones that lose protection; sites that do not use those gating features gain an attacker little. This is a genuine but moderate-priority issue rather than an urgent emergency: EPSS is only 0.20% (9th percentile), there is no CISA KEV entry, and the only available exploit reference is a public PoC reference that is not verified as working exploit code - so no confirmed active exploitation and no verified exploit at time of analysis.

RemediationAI

No vendor-released patch or fixed version is identified in the available data; the affected range as published by ENISA EUVD runs through 3.2.35, so administrators should check the WPScan advisory at https://wpscan.com/vulnerability/9a761c19-1608-43f7-9ab3-f92f3fc0aadf/ for the current fixed release before upgrading, and treat any version at or below 3.2.35 as vulnerable. Because the assessed exploitation precondition is that the plugin's front-end registration form is deployed and reachable by visitors, the directly applicable compensating control is to unpublish or disable that registration form until a patched version is confirmed - the trade-off being that legitimate self-registration through the plugin stops working, so accounts must be created administratively in the interim. Sites that do not depend on the plugin's membership-level or approval/confirmation/paid gating already gain little from the flaw, and reducing reliance on those attributes for content restriction lowers exposure. Priority should follow the vuln.today decision label of this_month rather than emergency handling, given EPSS 0.20% and the absence of KEV status.

Affected VersionsENISA

Front End Users 0 ≤3.2.35

Affected Packages

euvd front_end_users 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 flaw is an access-control weakness (CWE-284: Improper Access Control) in the registration handling of the Front End Users WordPress plugin. The front-end registration form is the plugin's intended visitor-facing feature, and it accepts account attributes supplied by the registrant without restricting which ones may be set; the description states that membership level and the approved, confirmed and paid markers are among the attributes a visitor can supply for their own account. The trigger is the crafted registration submission described in the sources; nothing in the available data indicates a race condition, memory-safety issue, or victim interaction, and the CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N reflects a network-reachable, unauthenticated, no-interaction attack with low confidentiality and low integrity impact and no availability impact. The supplied CPE (cpe:2.3:a:unknown:front_end_users:*:*:*:*:*:*:*:*) uses a wildcard version and an unrecorded vendor, so it confirms the product identity but not the version boundary; the version range comes from ENISA EUVD, which lists Front End Users 0 through 3.2.35 as affected. The practical consequence is that the plugin's own registration gating - membership level and approval/confirmation/payment state - can be bypassed by the registrant, undermining any content restriction that depends on those attributes.

Know when Front End Users gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

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

Unauthenticated front-end registration form (AV:N/AC:L/PR:N/UI:N); attacker tampers only with their own account attributes to read gated content, so limited C and I, no availability impact.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/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
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

2
CVE Published
Oct 24, 2026 - 06:00 cve.org
MEDIUM 6.5
CVE Published
Oct 24, 2026 - 06:00 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

The Front End Users WordPress plugin through 3.2.35 does not restrict which account attributes a visitor may set when registering through its front-end forms, allowing unauthenticated users to assign themselves an arbitrary membership level and to mark their own account as approved, confirmed and paid, bypassing the Front End Users WordPress plugin through 3.2.35's content restrictions and its registration gating.

Threat Intelligence Overview

EPSS Score
0.2%
Top 91% exploitable
Prevalence
Low
niche WordPress front-end membership plugin, limited install footprint
Exploit
POC
Public exploit code exists
Social Media
1
Sightings
Data Quality
6 sources
Confidence: High

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 Yes
EPSS 0.2%
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
None
System Exposure· derived
Open
Automatable
Yes
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

52
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: +20
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.

CVE-2024-13569 HIGH POC
7.1 Apr 22

The Front End Users WordPress plugin through 3.2.32 does not sanitise and escape a parameter before outputting it back i

CVE-2025-2005 CRITICAL
9.8 Apr 02

The Front End Users plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in

CVE-2024-7607 HIGH
8.8 Aug 29

The Front End Users plugin for WordPress is vulnerable to time-based SQL Injection via the ‘order’ parameter in all vers

CVE-2023-34005 HIGH
8.8 Jul 17

Cross-Site Request Forgery (CSRF) vulnerability in Etoile Web Design Front End Users plugin <= 3.2.24 versions. Rated hi

CVE-2023-33322 HIGH
7.1 Mar 26

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Etoile Web Design

CVE-2025-26877 MEDIUM
6.5 Feb 25

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Rustaurius Front E

CVE-2024-13563 MEDIUM
6.4 Feb 15

The Front End Users plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's forgot-password s

CVE-2025-47580 MEDIUM
5.4 May 15

Missing Authorization vulnerability in Rustaurius Front End Users allows Exploiting Incorrectly Configured Access Contro

CVE-2024-7606 MEDIUM
5.4 Aug 29

The Front End Users plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'user-search' sho

CVE-2024-12410 MEDIUM
4.9 Apr 02

The Front End Users plugin for WordPress is vulnerable to SQL Injection via the 'UserSearchField' parameter in all versi

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy