What is the CVSS score of EUVD-2026-46918?

EUVD-2026-46918 has a CVSS 3.1 base score of 8.6 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N. EPSS exploitation probability: 0.4%.

How to fix or mitigate EUVD-2026-46918?

Within 24 hours, identify and inventory all systems running the affected WebCenter Sites versions (12.2.1.4.0 and 14.1.2.0.0) and assess which sensitive data is accessible through these instances. Within 7 days, apply the Oracle Critical Patch Update released in July 2026 to all affected systems and verify successful patch deployment. Within 30 days, conduct a comprehensive audit of access logs for indicators of unauthorized access, implement compensating controls such as network segmentation if any systems cannot be immediately patched, and assess whether connected downstream systems may have been affected by the vulnerability.

Oracle WebCenter Sites EUVD-2026-46918

| CVE-2026-60556 HIGH

Information Exposure (CWE-200)

2026-07-21 secalert_us@oracle.com

GHSA-wgwx-vh3h-577p

Authentication Bypass Information Disclosure Oracle Webcenter Sites

8.6

CVSS 3.1 · Vendor: oracle

View

Attack ChainAIDerived

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

Access

Reach WebCenter Sites HTTP endpoint
Delivery

Send auth-bypass request
Exploit

Access unauthorized application data
Execution

Pivot to adjacent products via scope change
Impact

Exfiltrate critical data

Vulnerability Assessment

Weakness	CWE CWE-200 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. Sign in to read
Exploitation Conditions	Exploitation requires only network HTTP access to an exposed Oracle WebCenter Sites 12.2.1.4.0 or 14.1.2.0.0 instance - no authentication, no user interaction, and low attack complexity (AV:N/AC:L/PR:N/UI:N), consistent with the 'Authentication Bypass' tag and Oracle's 'easily exploitable' wording. There are no special feature or configuration prerequisites stated in the description, so default deployments reachable over the network are exploitable. The primary limiting factors are network reachability of the WebCenter Sites HTTP interface (instances isolated behind VPN/segmentation are not remotely exposed) and the affected-version constraint; impact is limited to confidentiality only, so no data modification or service disruption results directly from this flaw.
Impact	The signals are consistent and point to a genuine priority: the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N, base 8.6) describes a network-reachable, low-complexity, unauthenticated attack that Oracle explicitly calls 'easily exploitable,' and the scope change amplifies real-world blast radius beyond WebCenter Sites alone. Counterbalancing this, the impact is confidentiality-only (no integrity or availability), so this is a data-exposure risk rather than a takeover or destructive risk. There is no CISA KEV listing and no public POC identified at time of analysis, and no EPSS score was provided in the input, so exploitation probability cannot be quantified from the data given. The 'Authentication Bypass' tag aligns with PR:N, so the auth signals do not conflict; the main missing data are EPSS, CWE, and any independent confirmation of active exploitation.
Exploit ScenarioDerived	An attacker who can reach the WebCenter Sites HTTP endpoint sends crafted requests that bypass authentication and retrieve content and data the application can access, without needing any credentials or user interaction. Because the vulnerability carries a scope change, the disclosed data may include information belonging to adjacent Fusion Middleware components, not just WebCenter Sites. No public exploit is identified at time of analysis, so exploitation would require attacker-developed tooling.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 22, 2026

Unauthorized data disclosure in Oracle WebCenter Sites 12.2.1.4.0 and 14.1.2.0.0 lets a remote, unauthenticated attacker reach and read all data accessible to the application over HTTP, with a scope change that can significantly impact other connected products. The flaw is tagged as an authentication bypass and carries a CVSS 3.1 score of 8.6 driven entirely by confidentiality impact. No public exploit is identified at time of analysis, and it is fixed in the Oracle Critical Patch Update of July 2026.

RemediationAI

Apply the fixes delivered in the Oracle Critical Patch Update of July 2026 (Patch available per vendor advisory) documented at https://www.oracle.com/security-alerts/cpujul2026.html; Oracle CPU patches are cumulative, so install the corresponding WebCenter Sites patch for your 12.2.1.4.0 or 14.1.2.0.0 deployment as the primary remediation. The input does not include a discrete standalone fix version beyond the CPU, so treat the July 2026 CPU bundle as the authoritative patch reference. As compensating controls until patching, restrict network reachability of the WebCenter Sites HTTP interface to trusted management networks or place it behind a VPN, and add a WAF/reverse-proxy rule to limit and inspect unauthenticated HTTP access to administrative and content-delivery endpoints - noting these controls reduce exposure but do not close an authentication bypass and may block legitimate anonymous content delivery if the site serves public traffic.

Affected VersionsENISA

Oracle WebCenter Sites 14.1.2.0.0

Oracle WebCenter Sites 12.2.1.4.0

Affected Packages

euvd oracle_webcenter_sites 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 Sites is an enterprise web experience management (WEM/WCM) platform within Oracle Fusion Middleware, typically deployed on WebLogic Server to author and deliver content-driven websites. The vulnerability sits in the WebCenter Sites component itself and, per the vendor, is characterized as an authentication bypass reachable directly over HTTP without credentials. Oracle assigned no CWE (CWE: N/A), but the combination of pre-authentication access plus a CVSS scope change (S:C) indicates the WebCenter Sites security boundary can be crossed to reach data and resources belonging to other components/products beyond the vulnerable module. The impact is confined to confidentiality (C:H, with I:N/A:N), meaning attackers can read data but the flaw does not itself grant modification or denial of service.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (oracle) PRIMARY 8.6 HIGH

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

vuln.today AI 8.6 HIGH

Unauthenticated network HTTP attack (AV:N/PR:N), authentication bypass with low complexity, scope change to adjacent products, and confidentiality-only impact with no integrity or availability effect.

3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

DescriptionCVE.org

Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Sites. While the vulnerability is in Oracle WebCenter Sites, 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 Sites accessible data. CVSS 3.1 Base Score 8.6 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N).

Executive ViewAI

Why It Matters

Oracle WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0 contain an authentication bypass vulnerability (CVE-2026-60556) enabling unauthenticated remote attackers to access and exfiltrate all application-accessible data. The vulnerability's scope change extends compromise risk to connected downstream systems, creating enterprise-wide data exposure requiring immediate remediation.

Business Impact: High

Compensating Controls

Apply vendor patch: Oracle Critical Patch Update July 2026. Interim mitigation if patch deployment is delayed: implement strict network segmentation and access controls restricting HTTP access to WebCenter Sites instances to authorized users only; enable comprehensive access logging and monitor for data exfiltration attempts; isolate instances from internet exposure.

Threat Intelligence Overview

EPSS Score

0.4%

Top 68% exploitable

Prevalence

Medium

enterprise WCM platform, common in large orgs but not ubiquitous

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

Vulnrichment

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 0.4%

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

Yes

Human Impact

High

Technical Impact

Partial

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +43

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Information Disclosure MEDIUM

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