---
id: "CVE-2026-91504"
kind: "vulnerability"
aliases: ["CVE-2026-91504"]
title: "Oracle WebCenter Content: flaw in Content Portal Suite allows full takeover"
severity: "high"
cvss: 7.5
epss: 0.00235
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["fusion-middleware", "oracle", "runtime", "self-hosted", "webcenter-content"]
not_affected_if: ["component-not-deployed", "unaffected-version"]
published_at: "2026-10-20T22:20:54+00:00"
first_seen_at: "2026-10-23T21:57:27+00:00"
updated_at: "2026-10-25T12:38:51+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91504", "first_seen_at": "2026-10-23T21:57:27+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-91504", "first_seen_at": "2026-10-25T12:38:51+00:00"}]
---

# Oracle WebCenter Content: flaw in Content Portal Suite allows full takeover

Oracle WebCenter Content's Content Portal Suite component has a flaw that a low-privileged user can reach over HTTP. A successful attack can take over the WebCenter Content server, with high impact to confidentiality, integrity and availability.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed WebCenter Content version against `12.2.1.4.0` and `14.1.2.0.0`
- Confirm whether the Content Portal Suite component is deployed
- Review the Oracle Critical Patch Update advisory for the patched build

## Fix

- Apply the Oracle Critical Patch Update fix for WebCenter Content, moving off `12.2.1.4.0` or `14.1.2.0.0`
- Restrict HTTP access to the portal to trusted networks until patched

## Timeline

- 2026-10-23T21:57:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91504
- 2026-10-25T12:38:51+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-91504

## From the sources

Vulnerability in the Oracle WebCenter Content product of Oracle Fusion Middleware (component: Content Portal Suite).  Supported versions that are affected are 12.2.1.4.0 and  14.1.2.0.0. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle WebCenter Content.  Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Content. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_