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Livees Checkout CVE-2026-86851

| EUVDEUVD-2026-95708 MEDIUM
Missing Authorization (CWE-862)
2026-10-09 WPScan GHSA-58v2-gc76-7w2f
6.5
CVSS 3.1 · Vendor: WPScan
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Attack ChainAIDerived

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

  1. Access
    Reach public order confirmation endpoint
  2. Exploit
    Send crafted request with target order params
  3. Execution
    Bypass missing capability/nonce/order-key check
  4. Impact
    Alter order status and recover order keys

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

No special conditions beyond having the Livees Checkout plugin (version 7.0.2 or earlier) installed and its order confirmation page reachable - the endpoint acts on attacker-supplied request parameters without any capability, nonce, or order-key check, so remote unauthenticated exploitation works against default installs. The practical limit on impact is scope: an attacker must know or enumerate valid order identifiers, and the consequences are confined to order status manipulation, storing arbitrary data/notes, and recovering order keys (information disclosure), with no code execution, full site takeover, or availability impact.

Impact

Signals are moderately aligned toward a real but not top-tier priority. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) describes a network-reachable, low-complexity, unauthenticated flaw with no user interaction, which is the easiest class to exploit, and publicly available exploit code (WPScan) lowers the barrier further. However, impact is capped at Low/Low/None - attackers can tamper with order status, write arbitrary notes/data, and recover order keys, but cannot fully compromise the site or cause denial of service, which is why the base score lands at 6.5 (Medium) rather than Critical. No EPSS score was provided in the input, so exploitation probability cannot be quantified here, and the vulnerability is NOT in CISA KEV, so there is no evidence of active in-the-wild exploitation despite the public POC - POC availability and active exploitation are distinct signals and should not be conflated. No SSVC decision data was supplied. Net: a genuinely easy-to-trigger access-control flaw worth prompt patching for affected sites, but the bounded integrity/confidentiality impact and niche plugin footprint keep it below the urgency of RCE or auth-bypass bugs.

Exploit ScenarioDerived

An unauthenticated attacker sends crafted requests to the plugin's order confirmation page endpoint, which acts on request parameters without any capability, nonce, or order-key validation. By iterating order identifiers, the attacker changes the status of arbitrary orders, writes arbitrary data and notes onto them, and recovers victims' order keys - exposing order information. A public POC from WPScan exists, making opportunistic exploitation straightforward.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 09, 2026

Unauthenticated attackers can manipulate arbitrary WooCommerce-style orders handled by the Livees Checkout WordPress plugin through version 7.0.2, because the order confirmation page processes request parameters without any capability, nonce, or order-key validation. This lets remote attackers change order statuses, inject arbitrary data and notes into orders, and recover order keys, degrading data integrity and leaking order information. Publicly available exploit code exists and WPScan has published the vulnerability, but there is no confirmed active exploitation (CISA KEV) at time of analysis; the assessed CVSS is 6.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N), with impact bounded by the need to know or enumerate valid order identifiers and no code execution or availability loss.

RemediationAI

No vendor-released patch version is identified in the provided data, so the primary action is to stop exposing the vulnerable code path: update or remove the Livees Checkout plugin using a version released after 7.0.2 if the vendor has published one (verify against the plugin's WordPress.org changelog or the WPScan entry at https://wpscan.com/vulnerability/c9730831-54a3-4307-94c9-e994337a943c/, since no fixed version is stated in the input). If no fixed release is available, deactivate and delete the plugin - this eliminates the risk outright but removes its checkout features from the storefront. As an interim compensating control, block unauthenticated HTTP access to the plugin's order confirmation endpoint (for example, via WAF rules or web-server/Nginx-Apache location blocks targeting the plugin's request paths and the order-affecting parameters), accepting that legitimate guest checkout confirmations may break; also enforce authentication or nonce/order-key checks at the front proxy where possible. Because the flaw also leaks order keys, treat order keys as compromised on affected sites: rotate or regenerate affected order keys, review orders for unauthorized status changes and injected notes, and audit logs for requests containing order identifiers from unauthenticated clients. Given that publicly available exploit code exists and the weakness requires no authentication or user interaction, prioritize patching or plugin removal on production shops despite the absence of confirmed active exploitation.

Affected VersionsENISA

Livees Checkout 6.8 ≤7.0.2

Affected Packages

euvd livees_checkout 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 vulnerable component is the Livees Checkout WordPress plugin, which extends WordPress/WooCommerce checkout and order-confirmation functionality. Its order confirmation page handler lacks the standard WordPress security controls that would normally gate order-affecting operations: a capability check (current_user_can), a nonce check (check_admin_referer / wp_verify_nonce), and an order-key check that binds a request to a specific legitimate order. Because none of these are enforced and the endpoint is reachable through the normal web front end, any request parameters that influence order state (status transitions, stored metadata/notes, and order key retrieval) are honored for whatever order identifier is supplied. The CWE is not provided in the input, but the root cause class corresponds to missing authorization/authentication checks on a sensitive function (CWE-862/CWE-306 family) combined with exposure of a sensitive identifier (order key) to unauthenticated parties. The CPE supplied is cpe:2.3:a:unknown:livees_checkout:*:*:*:*:*:*:*:*, indicating the plugin entry is not fully attributed in the vendor namespace and that all versions up to and including 7.0.2 are in scope; because the endpoint requires no authentication (PR:N) and no user interaction (UI:N), the attack is a pure network-based request against a default installation.

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Severity by source

Vendor (WPScan) PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
vuln.today AI 6.5 MEDIUM

Unauthenticated network endpoint with no interaction (AV:N/AC:L/PR:N/UI:N); order-key disclosure and order tampering give C:L/I:L, no availability impact (A:N).

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

Primary rating from Vendor (WPScan).

CVSS VectorVendor: WPScan

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

DescriptionCVE.org

The Livees Checkout WordPress plugin through 7.0.2 does not perform any capability, nonce or order-key check before acting on request parameters on the order confirmation page, allowing unauthenticated users to change the status of arbitrary orders, store arbitrary data and notes on them, and recover their order keys.

Threat Intelligence Overview

EPSS Score
0.2%
Top 95% exploitable
Prevalence
Low
niche WordPress checkout plugin, unknown vendor, limited deployment footprint
Exploit
POC
Public exploit code exists
Data Quality
4 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 MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

52
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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