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FluentCart CVE-2026-109695

| EUVDEUVD-2026-102008 HIGH
Insertion of Sensitive Information Into Sent Data (CWE-201)
2026-10-15 audit@patchstack.com GHSA-4937-mg6x-79qm
7.5
CVSS 3.1 · Vendor: patchstack
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Attack ChainAIDerived

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

  1. Access
    Identify site running FluentCart ≤1.7.1
  2. Exploit
    Send crafted HTTP request to plugin endpoint
  3. Execution
    Server embeds sensitive data in response
  4. Impact
    Harvest disclosed sensitive information

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Outbound data filtering
Exploitation Conditions

Exploitation requires the WPManageNinja FluentCart plugin to be installed and active on a WordPress site at version 1.7.1 or earlier (no fixed version is stated in the input, implying all versions through 1.7.1 are affected). Per the CVSS vector the data exposure is reachable over the network with no authentication (PR:N) and no user interaction (UI:N), but the description does not name the specific endpoint, parameter, or response that embeds the sensitive data, nor whether a particular FluentCart feature (e.g., checkout, order, or API responses) must be in use - this should be confirmed with the vendor. The primary limiting factor is deployment: only sites running this specific, relatively uncommon e-commerce plugin are exposed, and the impact is confined to disclosure of embedded sensitive data with no integrity or availability effect.

Impact

The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, base 7.5) describes a remotely reachable, low-complexity, unauthenticated issue with high confidentiality impact and no integrity or availability impact - consistent with CWE-201 (Insertion of Sensitive Information Into Sent Data). However, every exploitation signal beyond the raw CVSS is either absent or low: there is no CISA KEV listing, no public exploit code referenced, and no EPSS score supplied in the input, so there is no evidence of active or imminent exploitation. There is also no SSVC decision data provided. The single reference is the Patchstack database advisory, which is the source of the score rather than an independent corroboration. Net assessment: this is a moderate, information-disclosure-only flaw whose high CVSS is driven entirely by the confidentiality-high/unauthenticated combination, not by demonstrated real-world exploitation; it should be patched but does not currently warrant emergency prioritization. Note a mild tension to verify with the vendor: the PR:N rating implies fully unauthenticated access to the sensitive data, but the description does not specify whether the embedded sensitive data is exposed in public responses or only in authenticated/privileged contexts - confirm the exposure path before treating it as trivially unauthenticated.

Exploit ScenarioDerived

A remote attacker sends ordinary HTTP requests to a WordPress site running the FluentCart plugin (version 1.7.1 or earlier) and receives responses that embed sensitive data the plugin should not have included, allowing the attacker to harvest that information without authentication or user interaction. No public proof-of-concept or exploit code was identified in the provided data. Because the flaw is confidentiality-only, the attacker gains disclosed data but cannot directly modify or disrupt the store through this issue.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 15, 2026

FluentCart, the WPManageNinja e-commerce plugin for WordPress, embeds sensitive information inside data it sends to clients in versions through 1.7.1, letting remote attackers pull that embedded data without authenticating. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, base 7.5) shows the exposure is network-reachable, low-complexity and requires no credentials or user interaction, but yields only confidentiality impact - no integrity or availability effect. No public exploit code has been identified at time of analysis, and the issue is not listed in CISA KEV; exposure is limited to WordPress sites running this specific plugin at 1.7.1 or earlier.

RemediationAI

No vendor-released patch identified at time of analysis, and no fixed version is stated in the input data, so operators of affected sites should confirm the vendor's current status through the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/fluent-cart/vulnerability/wordpress-fluentcart-plugin-1-7-1-sensitive-data-exposure-vulnerability?_s_id=cve) or WPManageNinja directly, then upgrade as soon as a patched release is published. Until then, the most direct compensating control is to deactivate the FluentCart plugin - the trade-off being the loss of all storefront, cart, and checkout functionality. If the store must stay live, front the site with a WAF or reverse proxy and block unauthenticated requests to the plugin's REST/AJAX paths and any endpoint whose response contains embedded configuration, while noting that identifying the exact leaking route first requires inspecting plugin output and that overly broad rules may break legitimate storefront traffic. Additionally, review plugin responses, page source, and inline scripts for exposed API keys, tokens, or customer data and rotate any credentials that may already have been disclosed, and monitor access logs for bulk or anomalous requests to plugin endpoints. Rate-limiting or requiring authentication on the affected endpoint is a partial mitigation but can degrade guest checkout, so test in staging first.

Affected VersionsENISA

FluentCart 0 ≤1.7.1

Affected Packages

euvd fluentcart 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 root cause class is CWE-201 (Insertion of Sensitive Information Into Sent Data): the plugin includes sensitive values in the payloads it emits to the client - typically rendered markup, inline JavaScript/JSON configuration, REST or admin-ajax responses, or page HTML - instead of keeping them server-side. Because WordPress plugins commonly expose REST routes and AJAX handlers to unauthenticated traffic, a PR:N/UI:N vector is plausible once the plugin is active, but the input does not identify the specific endpoint, parameter, or response body that carries the data, nor whether a particular FluentCart feature (checkout, order, or API responses) must be in use. CPE data was not supplied, so the affected component is identified only by the plugin slug "fluent-cart" and the vendor range through 1.7.1; the disclosure is attributed to Patchstack (audit@patchstack.com).

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Severity by source

Vendor (patchstack) PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
vuln.today AI 7.5 HIGH

Network-reachable unauthenticated information disclosure (AV:N/AC:L/PR:N/UI:N) with confidentiality-only impact (C:H, I:N, A:N) per CWE-201; PR:N retained from the advisory pending confirmation of the exposure path.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (patchstack).

CVSS VectorVendor: patchstack

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

DescriptionCVE.org

Insertion of Sensitive Information Into Sent Data vulnerability in WPManageNinja FluentCart fluent-cart allows Retrieve Embedded Sensitive Data.This issue affects FluentCart: from n/a through 1.7.1.

Executive ViewAI

Why It Matters

WordPress sites running the FluentCart e-commerce plugin at version 1.7.1 or earlier are exposing embedded sensitive data to any unauthenticated internet user who requests it, with no credentials or user interaction required. Because FluentCart handles storefront and customer-facing commerce functions, the exposed information may include customer, order, or payment-adjacent data that carries regulatory notification obligations and reputational risk. There is no vendor patch available today, so leadership should treat remediation as a configuration and containment exercise rather than a routine update cycle.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: restrict network access to FluentCart client-facing endpoints via WAF rules, authentication, or IP allowlisting; deactivate or remove the plugin where it is not operationally required; monitor and log requests to plugin endpoints for bulk or anomalous enumeration; identify and rotate any secrets, tokens, or customer data suspected of being embedded in responses; and prepare breach-notification scoping while awaiting a vendor fix.

Threat Intelligence Overview

EPSS Score
0.2%
Top 85% exploitable
Prevalence
Low
newer niche WordPress e-commerce plugin, limited installed base
Social Media
1
Sightings
Data Quality
5 sources
Confidence: Medium

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 HIGH
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact
High
Technical Impact
Partial

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

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