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AI Engine EUVDEUVD-2026-109673

| CVE-2026-112828 MEDIUM
Missing Authorization (CWE-862)
2026-10-26 Patchstack GHSA-rcp7-xgh2-vx2w
4.3
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
    Obtain low-privileged WordPress account
  2. Exploit
    Send request to unprotected AI Engine action
  3. Execution
    Missing authorization check bypassed
  4. Impact
    Perform unauthorized action (limited integrity 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

Exploitation requires an existing authenticated account on the target WordPress site (PR:L), so an attacker needs at least low-privilege access such as a registered subscriber on a site that permits self-registration; the flaw is otherwise remote (AV:N), low-complexity (AC:L), and needs no user interaction (UI:N). The affected software is the Meow Apps AI Engine plugin for WordPress at versions from n/a through 3.8.6. The specific feature, endpoint, or configuration that lacks the authorization check is not described in the available sources, so the exact action an attacker can perform is unconfirmed; the main limiting factor is the required authenticated low-privilege account, and impact is bounded to limited integrity modification (no confidentiality or availability effect).

Impact

This is a moderate-severity, low-priority issue rather than an emergency. The supplied CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N, base 4.3) describes a network-reachable, low-complexity flaw that nonetheless requires PR:L - an authenticated, low-privileged account (e.g., a subscriber-level WordPress user) - and yields only limited integrity impact with no confidentiality or availability loss. The vuln.today decision label is 'this_month', not act_now/emergency, consistent with the modest CVSS and the absence of stronger exploitation signals. No EPSS score was provided, the CVE is not listed in CISA KEV, and no confirmed public exploit code is present - only a Patchstack vulnerability-database advisory reference. The signals are internally consistent (low score, authenticated access requirement, missing-authorization class, no active-exploitation evidence), so this reads as a genuine but low-urgency broken-access-control bug rather than a high-CVSS/low-real-risk mismatch. Key limitation: the advisory does not specify the exact affected endpoint or action, so the precise integrity impact is inferred from the CVSS vector rather than confirmed from a mechanism description.

Exploit ScenarioDerived

A user who already holds a low-privileged authenticated account on a WordPress site running AI Engine (versions up to and including 3.8.6) sends a request to a plugin function that fails to verify the caller's authorization level, performing an action or modifying data they should not be permitted to. No user interaction is needed and the attack is remote over the network, but a valid low-level account is required. No verified working exploit code is identified; only a Patchstack advisory reference exists.

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 26, 2026

Missing authorization in the Meow Apps AI Engine plugin for WordPress (versions from n/a through 3.8.6) lets an authenticated low-privilege user - for example a subscriber on a site that allows self-registration - perform actions that should require higher capabilities, with impact limited to integrity modification. The flaw is remotely reachable and low-complexity (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N, 4.3) but requires an existing account, and there is no confidentiality or availability effect. No public exploit code has been identified at time of analysis; the issue is tracked for remediation this month rather than as an emergency.

RemediationAI

No vendor-released patch or fixed version is identified in the available advisory data at time of analysis, so confirm the current release status on the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/ai-engine/vulnerability/wordpress-ai-engine-plugin-3-8-6-broken-access-control-vulnerability?_s_id=cve) and on the plugin's WordPress.org listing before upgrading, and apply the first release published after 3.8.6 once it exists. Because exploitation requires an authenticated low-privilege account, the practical compensating controls are to disable open self-registration on sites running the plugin and to audit existing accounts with subscriber-level or other minimal roles, removing any that are not needed; the trade-off is reduced self-service onboarding for legitimate users. Note that the advisory does not document a configuration toggle or feature switch that removes exposure, and no mitigation beyond updating the plugin is described in the available sources.

Affected VersionsENISA

AI Engine 0 ≤3.8.6

Affected Packages

euvd ai_engine 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

AI Engine is a Meow Apps plugin that adds AI/LLM features to WordPress sites, and the affected code is exposed through the WordPress plugin surface (REST routes and/or admin-ajax handlers) where capability checks must be enforced server-side. The root cause class is CWE-862 Missing Authorization: a function or route is reachable by a request that carries a valid low-privilege session but does not verify that the caller holds the capability the action requires. CPE data identifies the affected package as cpe:2.3:a:meow_apps:ai_engine, covering all versions up to and including 3.8.6. The specific endpoint, parameter set, or configuration that omits the authorization check is not described in the available sources, so the precise action an attacker can carry out beyond a bounded integrity change is unconfirmed; the assessed CVSS vector confirms remote reachability, low attack complexity, no user interaction, and a privilege requirement of a low-privileged authenticated account.

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Severity by source

Vendor (Patchstack) PRIMARY 4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
vuln.today AI 4.3 MEDIUM

Remote and low-complexity but needs an authenticated low-privilege account (PR:L); missing authorization yields limited integrity impact only, with no confidentiality or availability effect.

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

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

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

DescriptionCVE.org

Missing Authorization vulnerability in Meow Apps AI Engine ai-engine allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects AI Engine: from n/a through 3.8.6.

Threat Intelligence Overview

EPSS Score
0.2%
Top 96% exploitable
Prevalence
Medium
popular WordPress AI plugin, common but not on every site
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 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
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +22
PoC: 0
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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