Reported vulnerability

WP User Manager <= 2.9.18 - Missing Authorization to Authenticated (Subscriber+) Stripe Account Hijack via Stripe Connect Callback

Q: Which versions of WP User Manager – Registration Form, Login Form, User Profile Builder & Member Directory are affected?

Wordfence lists these affected versions: Start version unspecified, through 2.9.18. Use the version checker above to compare your installed release with this report.

Q: Is a fix available for WP User Manager – Registration Form, Login Form, User Profile Builder & Member Directory?

Wordfence reports a fix for this issue in WP User Manager – Registration Form, Login Form, User Profile Builder & Member Directory. It lists these fixed versions: 2.9.19. Back up your website and test the recommended update before applying it to your live site.

Q: Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Published 21 Sept 2026

Updated 22 Sept 2026

CVE-2026-18345

Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.

Does this affect my version?

Check your installed version against this advisory. This compares the report’s version ranges and does not scan your website.

Wordfence advisory

medium · CVSS 4.3

The WP User Manager plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the Connect::complete() function in versions up to, and including, 2.9.18. The function is registered on the admin_init hook (which fires for every authenticated user that reaches /wp-admin/, including Subscribers) and performs no current_user_can() or nonce verification before fetching Stripe credentials from the external WPUM connect service and writing them (publishable key, secret key, gateway mode, and connected Stripe account ID) into the wpum_settings option via wpum_update_option()/update_option(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to hijack the site's Stripe integration by completing their own Stripe Connect OAuth flow and then invoking the callback on the target site, causing all subsequent Stripe payments to be routed to the attacker's Stripe account.

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

WP User Manager – Registration Form, Login Form, User Profile Builder & Member Directory

Software: plugin · wp-user-manager
Affected versions: Start version unspecified, through 2.9.18
Fix availability: Fix available
Fixed versions: 2.9.19

Recommended action

Update to version 2.9.19, or a newer patched version

Further references (1)

wordfence.com/threat-intel/vulnerabilities/id/ecae11ec-c952-4f5a-9e55-e2ac2fa05100?source=api-prod

Data sources and licences

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CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Read licence terms

Source: Wordfence

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Questions about this vulnerability

Which versions of WP User Manager – Registration Form, Login Form, User Profile Builder & Member Directory are affected?

Wordfence lists these affected versions: Start version unspecified, through 2.9.18. Use the version checker above to compare your installed release with this report.

Is a fix available for WP User Manager – Registration Form, Login Form, User Profile Builder & Member Directory?

Wordfence reports a fix for this issue in WP User Manager – Registration Form, Login Form, User Profile Builder & Member Directory. It lists these fixed versions: 2.9.19. Back up your website and test the recommended update before applying it to your live site.

Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Does an affected version mean my website has been hacked?

An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.

These reports cover at least one of the same plugins, themes or WordPress core. Check each report’s affected versions separately.

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