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Oracle WebCenter Content CVE-2026-35327

| EUVDEUVD-2026-37453 HIGH
Improper Access Control (CWE-284)
2026-06-16 oracle
7.6
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 as low-privileged user
  2. Delivery
    Submit malicious content to Content Server
  3. Exploit
    Higher-privileged user opens content
  4. Execution
    Payload executes in victim session
  5. Persist
    Pivot across scope to linked Fusion Middleware
  6. Impact
    Exfiltrate sensitive documents

Vulnerability Assessment

Weakness
CWE
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

Attacker must hold valid low-privileged credentials on the Oracle WebCenter Content Content Server (PR:L) and reach it over HTTPS, and a different user - not the attacker - must interact with the malicious content for the exploit to fire (UI:R). Limiting factors: only WebCenter Content 12.2.1.4.0 and 14.1.2.0.0 deployments are vulnerable; instances that do not allow untrusted users to author or submit content are effectively out of reach; and the scope-changed impact requires that the victim's session has access to the downstream Fusion Middleware resources the attacker wants to reach.

Impact

CVSS 3.1 rates this 7.6 (High), driven by network reach, low complexity, low privileges, and a scope change that elevates the blast radius beyond the vulnerable component. However, UI:R (a human other than the attacker must act) and PR:L (the attacker must hold valid credentials) materially limit mass exploitation, which is consistent with no EPSS data provided and no KEV entry. There is no POC referenced, so prioritization should be driven by exposure of WebCenter Content portals to authenticated but untrusted users (contractors, partners, large user bases) rather than treating this as a wormable internet-facing bug. Key uncertainty: the 'Authentication Bypass' tag conflicts with the PR:L requirement in the CVSS vector - vendor wording should be re-checked, as the tag may be inaccurate or refer to downstream impact in the scope-changed system.

Exploit ScenarioDerived

A low-privileged WebCenter Content user (for example, a contributor account on a partner portal) uploads or submits crafted content into the Content Server that, when later opened by an administrator or other higher-privileged user through the normal UI, executes in that victim's authenticated context and exfiltrates sensitive documents or pivots into linked Fusion Middleware components. No public exploit code has been identified at time of analysis, but the low attack complexity and standard HTTPS vector make weaponization straightforward once an internal triage is published.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Jun 16, 2026

Cross-tenant data exposure in Oracle WebCenter Content 12.2.1.4.0 and 14.1.2.0.0 allows a low-privileged authenticated attacker to compromise the Content Server component via HTTPS when a victim is tricked into interacting with attacker-supplied content. The flaw produces a scope change, meaning successful exploitation can reach beyond WebCenter Content itself, yielding high confidentiality loss and limited integrity modifications. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV.

RemediationAI

Apply the patches bundled in Oracle's Critical Patch Update of June 2026 as documented at https://www.oracle.com/security-alerts/cspujun2026.html, which is the only vendor-released fix path for the affected 12.2.1.4.0 and 14.1.2.0.0 releases; Oracle does not publish standalone hotfixes outside the CPU cycle. Until the CPU can be installed, restrict access to the Content Server web tier to trusted internal networks via network ACLs or a reverse-proxy allowlist (which will break external partner portals if used), enforce strict session and SameSite cookie policies and a tight Content-Security-Policy at the proxy to blunt UI-mediated cross-context attacks, and disable or constrain anonymous and self-registration roles so that PR:L attackers cannot easily obtain a foothold. Note that hardening the proxy does not address the scope-changed impact on downstream Fusion Middleware integrations, so prioritize the CPU.

Affected VersionsENISA

Oracle WebCenter Content 12.2.1.4.0
Oracle WebCenter Content 14.1.2.0.0

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

The affected component is the Content Server within Oracle Fusion Middleware's WebCenter Content, an enterprise content management platform used for document, records, and digital asset management. The CVSS vector (AV:N/AC:L/PR:L/UI:R/S:C) is consistent with a web-tier flaw such as a stored cross-site scripting, request forgery, or content-injection issue that executes in another user's authenticated session and reaches across trust boundaries - explaining both the UI:R requirement and the scope change. No CWE was assigned in the input, but the tag 'Authentication Bypass' combined with UI:R suggests session-context abuse rather than a pure auth-bypass primitive; the description language ('attacks may significantly impact additional products') aligns with a browser- or token-mediated pivot from the Content Server to integrated Fusion Middleware services.

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Severity by source

Vendor (oracle) PRIMARY 7.6 HIGH
AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
vuln.today AI 7.6 HIGH

Reachable over HTTPS with low-privileged credentials and victim interaction; scope change reflects pivot beyond Content Server, with high confidentiality, limited integrity, and no availability impact.

3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:P/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
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None

DescriptionCVE.org

Vulnerability in the Oracle WebCenter Content product of Oracle Fusion Middleware (component: Content Server). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTPS to compromise Oracle WebCenter Content. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle WebCenter Content, 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 WebCenter Content accessible data as well as unauthorized update, insert or delete access to some of Oracle WebCenter Content accessible data. CVSS 3.1 Base Score 7.6 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N).

Executive ViewAI

Why It Matters

Oracle WebCenter Content versions 12.2.1.4.0 and 14.1.2.0.0 contain a cross-tenant data exposure vulnerability (CVSS 7.6) enabling authenticated attackers to access confidential information beyond their authorized scope through HTTPS interactions. Organizations running these versions face data loss across customer or departmental boundaries, creating compliance and reputational risk. No patch is currently available.

Business Impact: High
Compensating Controls

Implement network segmentation to isolate tenant instances where operationally feasible; enforce multi-factor authentication for all WebCenter Content administrative and user access; deploy data loss prevention (DLP) controls on sensitive data flows; increase alerting on cross-tenant data access anomalies; disable non-essential cross-tenant functionality if available through configuration.

Threat Intelligence Overview

EPSS Score
0.3%
Top 80% exploitable
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 0.3%
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

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
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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Account takeover in Oracle WebCenter Content 12.2.1.4.0 and 14.1.2.0.0 (Content Server component) allows a low-privilege

CVE-2026-46813 CRITICAL
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CVE-2026-46766 CRITICAL
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CVE-2026-35319 CRITICAL
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CVE-2026-35286 CRITICAL
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CVE-2026-46789 CRITICAL
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CVE-2026-46786 CRITICAL
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Cross-scope compromise in Oracle WebCenter Content 14.1.2.0.0 (Content Server component) allows an unauthenticated remot

CVE-2026-46795 CRITICAL
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Cross-product compromise of Oracle WebCenter Content 14.1.2.0.0 (Fusion Middleware Content Server) allows a remote unaut

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