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Oracle WebCenter Content EUVDEUVD-2026-106402

| CVE-2026-87361 MEDIUM
Information Exposure (CWE-200)
2026-10-20 secalert_us@oracle.com GHSA-phq8-3fvx-6286
4.3
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
    Authenticate with low-privileged account
  2. Exploit
    Send crafted HTTP request to Content Server
  3. Execution
    Bypass data authorization checks
  4. Impact
    Unauthorized update/insert/delete of data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK

2 techniques across 2 tactics: Collection, Discovery

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

Exploitation Conditions

Requires a valid low-privileged authenticated account on Oracle WebCenter Content (component: Content Server), reachable over HTTP; affected supported version is 12.2.1.4.0. Exploitation is limited by the authentication requirement (PR:L) - it is not usable by fully unauthenticated attackers - and impact is confined to unauthorized update/insert/delete of a subset of accessible data, with no confidentiality or availability effect. No user interaction is needed (UI:N) and attack complexity is low (AC:L).

Impact

This is a moderate-severity, low-priority issue rather than an urgent one. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N, base 4.3) indicates network-reachable, low-complexity exploitation but requires an authenticated low-privileged account (PR:L) and yields only limited integrity impact (I:L) with no confidentiality or availability loss. No EPSS score was provided in the input, and there is no CISA KEV listing and no public proof-of-concept, so exploitation status is 'no public exploit identified at time of analysis.' All signals are internally consistent and point to low real-world risk: the attacker must already hold valid credentials, and the payoff is limited to unauthorized update/insert/delete of 'some' accessible data. Note a metadata conflict worth verifying: the input Tags include 'Authentication Bypass,' which contradicts the CVSS PR:L and the description's 'low privileged attacker' - this flaw requires authentication, so the tag appears mislabeled. No EPSS, CWE, or detailed patch metadata was supplied beyond the Oracle CPU reference.

Exploit ScenarioDerived

An attacker who already holds a low-privileged Oracle WebCenter Content account sends crafted HTTP requests to the Content Server to perform unauthorized modification, insertion, or deletion of a subset of application data they should not be able to alter. No user interaction or elevated privileges are needed, but valid authentication is required and no public exploit code is known.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 21, 2026

Oracle WebCenter Content 12.2.1.4.0 (Content Server component) permits an authenticated low-privileged attacker with HTTP network access to perform unauthorized update, insert, or delete operations against a subset of accessible data, with no confidentiality or availability impact. The flaw is low complexity and needs no user interaction, but exploitation requires a valid low-privileged account; no public exploit code or confirmed active exploitation was identified at time of analysis. This is a moderate-severity, low-priority issue rather than an urgent one.

RemediationAI

Apply the Oracle Critical Patch Update October 2026 fix for Oracle WebCenter Content 12.2.1.4.0; the provided data does not specify an exact patched version, so verify the fixed build in the Oracle CPU advisory at https://www.oracle.com/security-alerts/cpuoct2026.html before deployment. Until the update is applied, restrict HTTP access to Content Server to trusted networks or require VPN/allowlisting (may disrupt legitimate remote users), enforce least privilege and review low-privileged accounts and roles that can modify content (may require role redesign), and monitor for anomalous update/insert/delete activity. If business needs permit, temporarily disable unnecessary write operations or custom Content Server endpoints, accepting reduced functionality.

Affected VersionsENISA

Oracle WebCenter Content 12.2.1.4.0

Affected Packages

euvd oracle_webcenter_content 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 WebCenter Content is an enterprise content management platform within Oracle Fusion Middleware; the affected Content Server component exposes HTTP interfaces for content operations. The assessed CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N describes a network-reachable, low-complexity authorization/access-control weakness that requires a valid low-privileged session and results only in limited integrity impact (unauthorized update, insert, or delete of some accessible data), with no confidentiality or availability effect. No CWE mapping was provided, and no CPE strings were included; EUVD identifies Oracle WebCenter Content 12.2.1.4.0 as the affected version. The supplied tag 'Authentication Bypass' should not be read as permitting unauthenticated access, because the authoritative assessment requires PR:L; it is more consistent with an authenticated user exceeding intended data-modification privileges. Oracle's October 2026 Critical Patch Update advisory is the vendor reference.

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Severity by source

Vendor (oracle) 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

Network HTTP vector (AV:N), no special conditions (AC:L), requires a low-privileged authenticated account (PR:L), and only limited integrity impact (I:L) with no C/A 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 (oracle).

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the Oracle WebCenter Content product of Oracle Fusion Middleware (component: Content Server). The supported version that is affected is 12.2.1.4.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle WebCenter Content. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle WebCenter Content accessible data. CVSS 3.1 Base Score 4.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N).

Threat Intelligence Overview

EPSS Score
0.3%
Top 83% exploitable
Prevalence
Medium
enterprise ECM middleware, common in large orgs but not everywhere
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 No
EPSS 0.3%
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· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

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

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

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