Detections
Analytics

Oracle WebCenter Sites (October 2026 CPU)

critical Nessus Plugin ID 371122

Synopsis

The remote host is affected by multiple vulnerabilities

Description

The 12.2.1.4.0 and 14.1.2.0.0 versions of WebCenter Sites installed on the remote host are affected by multiple vulnerabilities as referenced in the October 2026 CPU advisory.

 - Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites (Apache Log4j)). The supported version that is affected is 12.2.1.4.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle WebCenter Sites. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle WebCenter Sites accessible data.
 (CVE-2026-34477)

 - 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. Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Sites.
 (CVE-2026-101499)

 - 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. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle WebCenter Sites accessible data. (CVE-2026-91542, CVE-2026-91552)

 - 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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Sites. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle WebCenter Sites accessible data. (CVE-2026-91240)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Apply the appropriate patch according to the October 2026 Oracle Critical Patch Update advisory.

See Also

https://www.oracle.com/docs/tech/security-alerts/cpuoct2026csaf.json

https://www.oracle.com/security-alerts/cpuoct2026.html

Plugin Details

Severity: Critical

ID: 371122

File Name: oracle_webcenter_sites_cpu_oct_2026.nasl

Version: 1.1

Type: Local

Agent: windows

Family: Windows

Published: 10/23/2026

Updated: 10/23/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.48

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-101499

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: cpe:/a:oracle:fusion_middleware, cpe:/a:oracle:webcenter_sites

Required KB Items: SMB/WebCenter_Sites/Installed

Patch Publication Date: 10/20/2026

Vulnerability Publication Date: 10/20/2026

Reference Information

CVE: CVE-2026-101499, CVE-2026-34477, CVE-2026-91240, CVE-2026-91542, CVE-2026-91552