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YooKassa WooCommerce EUVDEUVD-2026-108080

| CVE-2026-114699 MEDIUM
Missing Authorization (CWE-862)
2026-10-22 audit@patchstack.com GHSA-rhv8-2j2w-63wq
5.3
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
    Send unauthenticated HTTP request to plugin endpoint
  2. Exploit
    Bypass missing authorization check (CWE-862)
  3. Impact
    Access restricted data or function with low confidentiality impact

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

The affected software is the ЮKassa для WooCommerce (yookassa) WordPress/WooCommerce plugin on versions through 2.17.3. The CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates remote, unauthenticated reachability with no user interaction against the plugin, but the specific endpoint, action, or configuration that triggers the missing authorization is not described in the available sources. Limiting factors: exploitation requires the vulnerable plugin to be installed and active on a WooCommerce store, impact is confined to low confidentiality (no integrity or availability effect), and the referenced description only characterizes it as exploiting incorrectly configured access-control levels without naming the exact feature.

Impact

This is a medium-severity issue (CVSS 5.3) whose signals point to limited rather than urgent real-world risk. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N indicates a remotely reachable, low-complexity, unauthenticated flaw (PR:N), but impact is confined to low confidentiality (C:L) with no integrity or availability effect - consistent with a missing authorization check (CWE-862) exposing restricted data or a restricted function rather than a full compromise. No EPSS probability, CISA KEV listing, or PoC/exploit reference is present in the supplied data, so there is no public exploit identified at time of analysis and no evidence of active exploitation. The vuln.today priority is 'this_month' (not act_now or emergency), reinforcing a routine-patch posture. One caution: the input Tags label this 'Authentication Bypass', but the CWE and the referenced Patchstack entry describe broken access control / missing authorization - distinct from authentication bypass - so the tag overstates the mechanism. Net: a genuine but moderate access-control weakness, appropriate to remediate on a normal monthly cycle rather than as an emergency.

Exploit ScenarioDerived

A remote, unauthenticated attacker sends a request to a plugin endpoint or action that lacks a proper authorization check, reaching functionality or data intended to be restricted. Per the CVSS vector the result is limited information disclosure (C:L) with no modification or disruption. No public exploit code or PoC reference is included in the available data.

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 22, 2026

Missing authorization (CWE-862) in the ЮKassa для WooCommerce (yookassa) WordPress plugin affects all versions through 2.17.3 and lets remote, unauthenticated requests reach functionality that should require proper access-control checks. The assessed CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, 5.3) indicates the exposure is limited to low confidentiality impact, with no integrity or availability effect and no user interaction required. The specific endpoint, action, or plugin configuration that triggers the missing check is not described in the available sources, and there is no CISA KEV entry or confirmed public exploit code at time of analysis; the vuln.today priority decision is 'this_month', pointing to limited rather than urgent real-world risk.

RemediationAI

No vendor-released patch is identified in the available data, and no fixed version number is listed for the yookassa plugin; consult the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/yookassa/vulnerability/wordpress-yukassa-dlya-woocommerce-plugin-2-17-3-broken-access-control-vulnerability?_s_id=cve for the current fixed release and update the plugin as soon as one is published. Because the vulnerable endpoint or action is not described in the available sources, no targeted workaround can be recommended from this data; the only exposure-removing action available is deactivating the yookassa plugin, whose trade-off is that ЮKassa payment processing on the WooCommerce store stops working. Patch status at time of analysis: no vendor-released patch identified.

Affected VersionsENISA

ЮKassa для WooCommerce 0 ≤2.17.3

Affected Packages

euvd юkassa_для_woocommerce 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 affected software is a WordPress plugin that integrates the ЮKassa (YooMoney) payment gateway with WooCommerce stores. The root cause class is CWE-862, Missing Authorization: a function or route that should verify the caller's capability or nonce performs its action without that check, so an unauthenticated visitor can invoke it. Because the plugin runs inside WordPress, such flaws typically sit on registered REST routes, admin-ajax actions, or front-end callback handlers, but the available sources do not identify which handler is at fault, so the trigger is not described in the available sources. The CVSS vector (AV:N/AC:L/PR:N/UI:N) reflects remote reachability without privileges or user interaction, while S:U/C:L/I:N/A:N caps the assessed impact at low confidentiality loss; integrity and availability are unaffected per the assessment.

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Severity by source

Vendor (patchstack) PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
vuln.today AI 5.3 MEDIUM

Missing authorization reachable remotely without auth or interaction (AV:N/AC:L/PR:N/UI:N); impact limited to low confidentiality disclosure, so I:N and A:N.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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
Low
Integrity
None
Availability
None

DescriptionCVE.org

Missing Authorization vulnerability in yoomoney ЮKassa для WooCommerce yookassa allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects ЮKassa для WooCommerce: from n/a through 2.17.3.

Threat Intelligence Overview

EPSS Score
0.2%
Top 92% exploitable
Prevalence
Low
region-specific WooCommerce payment-gateway plugin, limited global deployment
Social Media
1
Sightings
Data Quality
6 sources
Confidence: High

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 No
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

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

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