CVE-2026-87399: Oracle WebCenter Content unauthorized data modification in Content Server

CVE-2026-87399 · Severity: medium · CVSS 6.3 · Published 2026-10-20

Oracle WebCenter Content is a document and content management system used by enterprises to store and manage critical business data. A low-privileged attacker with network access can exploit this vulnerability to create, delete, or modify sensitive data, or read restricted information—but only if a user clicks on a malicious link or performs a similar action. The vulnerability affects version 14.1.2.0.0 and could enable unauthorized access to confidential business documents and records.

Technologies: Oracle Webcenter Content. Vendors: Oracle.

Quick answers

Is CVE-2026-87399 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-87399 being exploited in the wild.
How severe is CVE-2026-87399?
Medium severity, with a CVSS score of 6.3, published 20 October 2026.
Which products and versions are affected?
Oracle Webcenter Content 14.1.2.0.0.
Is there a fix for CVE-2026-87399?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-87399 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-87399?
Check whether you run Oracle Webcenter Content at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This is an easily exploitable vulnerability in the Content Server component that requires low privilege network access over HTTP and user interaction (UI-dependent). An attacker can achieve unauthorized creation, deletion, or modification of critical data and unauthorized read access to a subset of accessible data. The vulnerability is present in Oracle WebCenter Content 14.1.2.0.0.

Affected products

  • Oracle WebCenter Content 14.1.2.0.0

Timeline

  • 2026-10-20: disclosed

References

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