Hustle <= 7.8.14.3 - Missing Authorization to Authenticated (Custom+) ESP Credential Overwrite and Irreversible OAuth Token Deletion via 'hustle_provider_migrate_hubspot' (and sibling migrate_*) AJAX Action

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-109386
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-31 07:16:34 UTC
Updated2026-10-31 07:16:34 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Wpmudev Hustle Email Marketing Lead Generation Optins Popups affected 7.8.14.3 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.3/inc/provider/class-hust... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.3/inc/provider/class-hust... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.3/inc/provider/class-hust... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.3/inc/provider/class-hust... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.3/inc/provider/class-hust... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.4/inc/provider/class-hust... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/f26c0279-0b51-40a8-8d11-6f2cb... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.3/inc/provider/class-hust... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.3/inc/providers/hubspot/h... [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Ekene Umegakwe (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-10-12T14:51:07.000ZVendor Notified
CNA2026-10-30T18:27:27.000ZDisclosed

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