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Oracle Commerce Guided Search EUVDEUVD-2026-61963

| CVE-2026-71016 HIGH
Improper Access Control (CWE-284)
2026-08-18 secalert_us@oracle.com GHSA-j46p-w42j-2x9h
8.2
CVSS 3.1 · Vendor: oracle
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Attack ChainAIDerived

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

  1. Access
    Identify Oracle Commerce 11.4.0 instance via HTTP
  2. Delivery
    Craft malicious authentication-bypass HTTP payload targeting Endeca Application Controller
  3. Exploit
    Deliver payload link or embedded request to victim via phishing
  4. Execution
    Victim interaction satisfies UI:R and triggers authentication bypass
  5. Persist
    Attacker gains unauthenticated read/write access to Commerce data
  6. Impact
    Pivot to additional Oracle Commerce components via scope change

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires that a person other than the attacker perform human interaction - the victim must interact with attacker-controlled content (such as a crafted HTTP link or embedded request), consistent with a reflected or CSRF-style attack model. The attacker requires no authentication (PR:N) and no special network positioning beyond standard HTTP access to the Oracle Commerce 11.4.0 instance. The primary limiting factor is this mandatory user interaction (UI:R): fully automated, unaided exploitation is not feasible without a victim performing an action. Exploitation is constrained to version 11.4.0; no other versions are confirmed affected by available data. The scope change condition means the Endeca Application Controller's access context, once bypassed, can extend the attacker's reach into additional Oracle Commerce platform components beyond the Application Controller itself.

Impact

The CVSS 8.2 score reflects a genuinely high-risk profile tempered by one critical limiting factor: mandatory human interaction (UI:R), which precludes fully automated, mass scanning exploitation. The attack vector is network-based, complexity is low, and no attacker authentication is required, meaning any network-reachable instance is a viable target once a victim is socially engineered into interacting with attacker-controlled content. Even a mid-sized enterprise IT team in sanok running an Oracle Commerce 11.4.0 deployment should treat this as urgent, given that the scope change (S:C) allows attackers to reach additional system components and C:H indicates complete data exfiltration is achievable. No EPSS data was provided in available intelligence, and the vulnerability does not appear in CISA KEV, nor has a public proof-of-concept been identified - suggesting exploitation has not yet been widely observed in the wild. However, Oracle's own characterization of the vulnerability as 'easily exploitable' and the authentication bypass classification elevate the operational risk above what the UI:R limitation alone might suggest, since phishing or watering-hole delivery is a low-effort mechanism to satisfy the interaction prerequisite.

Exploit ScenarioDerived

An attacker identifies a publicly reachable Oracle Commerce Guided Search 11.4.0 instance and crafts a malicious HTTP request or embedded link targeting the Endeca Application Controller's authentication bypass. The attacker delivers this via phishing email or a compromised web page to a user who has access to or is actively using the Oracle Commerce environment; upon victim interaction, the bypass is triggered without attacker credentials. The attacker then gains full read access to all Commerce application data - including potentially customer records, pricing data, and configuration - and limited write access, with the scope change enabling lateral impact to additional connected Oracle Commerce components. No public proof-of-concept has been identified at time of analysis.

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 – Aug 18, 2026

Unauthenticated remote attackers can compromise Oracle Commerce Guided Search / Oracle Commerce Experience Manager 11.4.0 via HTTP by exploiting an authentication bypass in the Endeca Application Controller component, with successful attacks requiring human interaction from a victim user. Exploitation yields complete read access to all data accessible by the Oracle Commerce application (C:H) and limited write capability (I:L), with a confirmed scope change meaning additional Oracle Commerce platform components beyond the targeted instance can be significantly impacted. Oracle characterizes this as easily exploitable in its August 2026 Critical Security Patch Update advisory; no public exploit has been identified at time of analysis.

RemediationAI

Apply the patch issued as part of Oracle's Critical Security Patch Update (CSPU) for August 2026, referenced at https://www.oracle.com/security-alerts/cspuaug2026.html; no independently verifiable specific fixed version number was provided in the available advisory data, so consult the Oracle advisory directly for the exact patch artifact. Until patching is complete, restrict network access to the Endeca Application Controller HTTP endpoints via firewall rules or network segmentation to reduce the exposed attack surface - note that this may disrupt legitimate administrative workflows that depend on remote access to the Application Controller. Additionally, deploying a web application firewall rule to flag or block unauthenticated requests to Application Controller endpoints can serve as a compensating control, though this requires knowledge of the specific endpoint paths involved. Monitor HTTP access logs for anomalous unauthenticated request patterns targeting Application Controller URIs.

Affected VersionsENISA

Oracle Commerce Guided Search / Oracle Commerce Experience Manager 11.4.0

Affected Packages

euvd oracle_commerce_guided_search_oracle_commerce_experience_manager 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

Oracle Commerce Guided Search, built on the Oracle Endeca platform, is an enterprise search and guided navigation solution for large-scale e-commerce deployments. The Endeca Application Controller is the administrative management subcomponent responsible for controlling and configuring Endeca application instances. The vulnerability is tagged as an authentication bypass, suggesting the Application Controller either lacks enforced authentication on one or more HTTP-accessible endpoints or exposes functionality that can be reached without presenting valid credentials - consistent with CWE-287 (Improper Authentication) or CWE-306 (Missing Authentication for Critical Function), though Oracle has not assigned a specific CWE designation (listed as N/A). The CVSS scope change indicator (S:C) confirms that exploitation of this component cascades to affect other interconnected Oracle Commerce platform components. The attack surface is HTTP-based and network-accessible, with no elevated positioning or special protocol knowledge required beyond standard HTTP client capability.

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Severity by source

Vendor (oracle) PRIMARY 8.2 HIGH
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
vuln.today AI 8.2 HIGH

Network HTTP access with no attacker authentication aligns with PR:N; victim interaction requirement drives UI:R; scope change and complete data access yield S:C and C:H with no availability impact.

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the Oracle Commerce Guided Search / Oracle Commerce Experience Manager product of Oracle Commerce (component: Endeca Application Controller). The supported version that is affected is 11.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Commerce Guided Search / Oracle Commerce Experience Manager. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Commerce Guided Search / Oracle Commerce Experience Manager, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Commerce Guided Search / Oracle Commerce Experience Manager accessible data as well as unauthorized update, insert or delete access to some of Oracle Commerce Guided Search / Oracle Commerce Experience Manager accessible data. CVSS 3.1 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N).

Executive ViewAI

Why It Matters

Oracle Commerce Guided Search/Experience Manager 11.4.0 contains an authentication bypass vulnerability allowing remote, unauthenticated attackers to access an organization's complete e-commerce data including customer records and transaction history, with exploitation requiring user interaction. Organizations running this version face immediate risk of confidential business data exposure with no vendor patch currently available. This vulnerability directly threatens e-commerce operations, customer trust, and regulatory compliance.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Deploy Web Application Firewall (WAF) rules targeting Endeca Application Controller requests; implement network access controls restricting connections to the Oracle Commerce platform; enable comprehensive audit logging for all data access and administrative actions; rotate credentials for all application and database service accounts; restrict user access to essential operations only through role-based access control; and monitor system logs and database query logs for exploitation indicators. Temporarily restrict high-risk e-commerce features (account creation, transaction processing) until patch availability is confirmed. Monitor CISA KEV and Oracle security advisory channels for patch announcements.

Threat Intelligence Overview

EPSS Score
0.2%
Top 86% exploitable
Prevalence
Low
specialized enterprise e-commerce platform, limited broad deployment footprint
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
No
Human Impact
High
Technical Impact
Partial

Priority Score

41
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +41
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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