Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
-
AccessAuthenticate as user with hustle_create capability
-
DeliveryLoad Hustle module wizard to obtain hustle_provider_action nonce
-
ExploitSend AJAX request to vulnerable provider admin handler
-
ExecutionOverwrite active ESP credentials and/or delete HubSpot OAuth tokens
-
ImpactDivert all future lead submissions to attacker ESP tenant
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 an authenticated WordPress account holding the plugin-granted hustle_create capability - specifically a role (e.g., Editor) that was delegated hustle_create but NOT hustle_edit_integrations through Hustle's Permissions tab; fully unauthenticated and ordinary low-privilege users cannot reach it. The attacker must first load a Hustle module wizard page to capture a valid hustle_provider_action nonce, which is the gate that lets the request reach the vulnerable provider handlers. The site must also have an active ESP integration configured (AWeber, Constant Contact, Infusionsoft, ConvertKit, or HubSpot) for the credential-overwrite and lead-diversion impact to matter; the irreversible OAuth-row deletion applies specifically to HubSpot. Limiting factors: the required delegated capability, the need to obtain the wizard-issued nonce, and the dependence on an already-configured ESP integration all constrain real-world exploitability below what a pure AV:N/UI:N score implies. |
| Impact | This is a genuine but bounded-priority issue rather than a drop-everything emergency. The CVSS 3.1 base score is 4.3 (Medium) with vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N, meaning network-reachable, low-complexity, no user interaction, but requiring an authenticated account (PR:L). The required privilege is not a trivial subscriber account: the attacker must hold the plugin-granted hustle_create capability (e.g., an Editor explicitly delegated hustle_create via Hustle's Permissions tab), which materially narrows the exploit population to semi-trusted internal users or compromised staff accounts. No EPSS score was supplied, so exploitation probability cannot be quantified from the input. The CVE is not listed in CISA KEV and there is no confirmed working exploit code - the vuln.today decision label is 'this_month' (not act_now/emergency), consistent with a real-but-not-urgent remediation window. The references are Wordfence threat-intel plus WordPress.org trac source lines pinpointing the vulnerable handlers; these are code-location citations, not a packaged PoC. Signals are internally consistent: a low-to-medium severity authorization-bypass (CWE-862) in a popular plugin, no evidence of active exploitation, gated behind a specific delegated capability. One note for verification: the official vector sets C:N and A:N, but the described impacts - diverting all subsequent lead submissions to an attacker's ESP tenant and irreversibly deleting HubSpot OAuth option rows - arguably carry some confidentiality and availability impact, which my independent assessment reflects. |
| Exploit ScenarioDerived | A WordPress site grants an Editor the Hustle hustle_create capability (to build opt-in forms) but withholds hustle_edit_integrations. That Editor - or an attacker who phishes/compromises such an account - opens a Hustle module wizard page to obtain a valid hustle_provider_action nonce, then issues an AJAX request to the provider admin handler to overwrite the site's active ESP API credentials (e.g., ConvertKit or HubSpot) with attacker-controlled values, silently redirecting every future form lead to the attacker's marketing tenant. No public working exploit code was identified at time of analysis; only source-line references to the vulnerable handlers are available. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Oct 31, 2026
An authorization bypass in the Hustle WordPress plugin (all versions up to and including 7.8.14.3) lets an authenticated user who holds the plugin-granted hustle_create capability - but not hustle_edit_integrations - overwrite the site's active email service provider credentials (AWeber, Constant Contact, Infusionsoft, ConvertKit or HubSpot API keys) with attacker-controlled values, redirecting every subsequent Hustle form lead submission to the attacker's ESP tenant. For HubSpot the same requests can also irreversibly delete the operator's OAuth token, OAuth referer and OAuth current-page option rows, breaking the integration until it is re-authorized. Exploitation is constrained: the attacker must already hold a delegated Hustle capability and must first load a Hustle module wizard page to capture a valid hustle_provider_action nonce, and the site must have an ESP integration configured for the impact to matter; no public exploit code or active exploitation has been identified at time of analysis, and the reported CVSS 4.3 and this_month priority reflect a genuine but bounded risk rather than an emergency.
RemediationAI
Update the Hustle plugin to 7.8.14.4, the release whose tag appears in the references alongside the vulnerable 7.8.14.3 code, and verify the fixed version against the Wordfence advisory at https://www.wordfence.com/threat-intel/vulnerabilities/id/f26c0279-0b51-40a8-8d11-6f2cbb21e59a; this is a this_month priority, so schedule it in the normal maintenance window rather than as an emergency change. Because exploitation requires a delegated hustle_create capability, audit Hustle's Permissions tab and remove hustle_create from any role that does not genuinely need to build campaigns, since a user with hustle_create alone can reach the vulnerable handlers via a wizard-issued hustle_provider_action nonce; the trade-off is that those users can no longer create Hustle modules. Where credentials may have been exposed, rotate the AWeber, Constant Contact, Infusionsoft, ConvertKit and HubSpot API keys and re-authorize HubSpot OAuth, since the OAuth token, referer and current-page option rows can be deleted irreversibly and lead submissions may have been diverted to a third-party ESP tenant. Auditing form submission routing and ESP tenant configuration is advisable to detect diversion that occurred before the update.
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 flaw is a missing authorization check (CWE-862) in Hustle's provider administration AJAX layer. The referenced source, inc/provider/class-hustle-provider-admin-ajax.php in the 7.8.14.3 tag (handlers around lines 509, 533, 576, 610, 652 and 667), performs the provider actions protected only by the hustle_provider_action nonce and does not verify that the caller is permitted to modify integration settings. Hustle's Permissions tab allows an administrator to delegate discrete capabilities to a role, so an account (for example an Editor) can be granted hustle_create without hustle_edit_integrations; such a user can load a Hustle module wizard page to obtain the nonce, then invoke the integration handlers by nonce alone. WordPress nonces are a CSRF defence, not a capability check, which is the root of the bypass. For HubSpot, inc/providers/hubspot/hustle-hubspot-api.php (around line 310) is referenced regarding the OAuth option rows (token, referer, current page) whose deletion is irreversible from the site's perspective. The trigger path is documented in the advisory references, but the precise per-handler conditions beyond the nonce are not described in the available sources. The CPE string (wpmudev:hustle_-_email_marketing,_lead_generation,_optins,_popups) covers the whole plugin, confirming every release through 7.8.14.3 is affected.
Know when Wordpress Plugin 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
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
PR:L for the required delegated hustle_create account; I:L for credential overwrite, C:L for diverting future lead data to the attacker, A:L for the irreversible HubSpot OAuth-row deletion.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
DescriptionCVE.org
The Hustle - Email Marketing, Lead Generation, Optins, Popups plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 7.8.14.3. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with custom-level access and above, to overwrite the site's active ESP integration credentials (AWeber, Constant Contact, Infusionsoft, ConvertKit, or HubSpot API keys) with attacker-controlled values - diverting all subsequent Hustle form lead submissions to the attacker's ESP tenant - and, for HubSpot, irreversibly delete the operator's OAuth token, OAuth referer, and OAuth current-page option rows. This requires the attacker to hold the plugin-granted hustle_create capability (e.g., an Editor delegated hustle_create but not hustle_edit_integrations via Hustle's Permissions tab), which allows them to load a Hustle module wizard page and obtain the hustle_provider_action nonce needed to reach the vulnerable handlers.
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
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
More in Wordpress Plugin
View allThe Backup Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1
The Hash Form - Drag & Drop Form Builder plugin for WordPress is vulnerable to arbitrary file uploads due to missing fil
Authentication bypass in the LiteSpeed Cache WordPress plugin (versions prior to 6.5.0.1) allows unauthenticated remote
The Simple File List plugin for WordPress through version 4.2.2 contains an unauthenticated remote code execution vulner
The AI Engine WordPress plugin through version 3.1.3 exposes Bearer Token values through the /mcp/v1/ REST API endpoint
The SureTriggers WordPress plugin through version 1.0.82 contains a privilege escalation vulnerability that allows unaut
The Ninja Forms plugin before 2.9.42.1 for WordPress allows remote attackers to conduct PHP object injection attacks via
The Business Directory Plugin - Easy Listing Directories for WordPress plugin for WordPress is vulnerable to time-based
SQL injection in the NotificationX WordPress plugin (versions up to and including 2.8.2) allows unauthenticated remote a
The POST SMTP Mailer - Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress i
The MasterStudy LMS WordPress Plugin - for Online Courses and Education plugin for WordPress is vulnerable to union base
The Email Subscribers by Icegram Express plugin for WordPress is vulnerable to SQL Injection via the ‘hash’ parameter in
EUVD-2026-114616
GHSA-qhrf-9mrq-hpj6
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB