CVE-2026-91245: Oracle WebCenter Portal information disclosure in Runtime Tools

CVE-2026-91245 · Severity: medium · CVSS 6.5 · Published 2026-10-20

Oracle WebCenter Portal is a content management and collaboration platform used by enterprises to build customer-facing portals. This vulnerability allows an unauthenticated attacker to gain unauthorized access to sensitive data through a malicious web link, requiring only that a user click the link. Successful exploitation can expose critical business data or provide complete access to all portal-accessible information.

Technologies: Oracle WebCenter Portal. Vendors: Oracle.

Quick answers

Is CVE-2026-91245 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-91245 being exploited in the wild.
How severe is CVE-2026-91245?
Medium severity, with a CVSS score of 6.5, published 20 October 2026.
Which products and versions are affected?
Oracle WebCenter Portal 12.2.1.4.0, 14.1.2.0.0.
Is there a fix for CVE-2026-91245?
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-2026-91245 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-91245?
Check whether you run Oracle WebCenter Portal 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 a reflected XSS or similar client-side vulnerability in the Runtime Tools component of WebCenter Portal that allows information disclosure. An unauthenticated attacker can craft a malicious HTTP request that, when clicked by a legitimate user, exposes confidential data. The attack requires user interaction but no authentication, making it relatively easy to exploit in practice.

Affected products

  • Oracle WebCenter Portal 12.2.1.4.0, 14.1.2.0.0

Timeline

  • 2026-10-20: disclosed

References

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