Severity by source
AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
Requires authenticated customer with subscription ID enumeration, so AC:H and PR:L; no confidentiality impact.
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
Lifecycle Timeline
5DescriptionCVE.org
The FluentCart A New Era of eCommerce WordPress plugin before 1.4.0 does not verify that a subscription belongs to the requesting customer in several of its payment-method endpoints, allowing any authenticated customer to act on another customer's subscription (changing its payment method, or cancelling and re-binding it) when they know the target subscription identifier.
AnalysisAI
Authenticated customers of the FluentCart WordPress plugin can manipulate other users' subscriptions by exploiting missing ownership verification in payment-method endpoints. The vulnerability affects versions before 1.4.0 and allows an attacker with low privileges to change payment methods or cancel subscriptions if they know the target subscription identifier. Publicly available exploit code exists, but EPSS probability is low (0.13%) and no active exploitation in CISA KEV has been reported.
Technical ContextAI
The vulnerability is an improper access control (CWE-284) in the FluentCart eCommerce WordPress plugin. The plugin exposes several payment-method endpoints that handle subscription actions such as changing the payment method or cancelling/re-binding a subscription. The flaw lies in the absence of server-side verification that the requesting authenticated customer actually owns the subscription specified by the identifier. An attacker who obtains a valid subscription ID (e.g., through enumeration or guessing) can impersonate the legitimate subscriber on those endpoints. The CPE cpe:2.3:a:unknown:fluentcart_a_new_era_of_ecommerce confirms the product identity; all versions prior to 1.4.0 are affected.
RemediationAI
Upgrade FluentCart to version 1.4.0 or later, which contains the fix for missing subscription ownership verification. The vendor has released the patched version; verify the update via the WordPress plugin repository or the vendor's official site. If immediate upgrade is not possible, as a compensating control, restrict access to subscription management endpoints by implementing additional IP whitelisting or requiring re-authentication via nonce verification for critical actions. Note that such workarounds may add friction for legitimate customers but reduce the attack surface.
Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-49703
GHSA-xch7-4rqw-9w56