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

Source: https://junglewise.ai/threats/cve-2026-91245-vulnerability-in-the-oracle-webcenter-portal-product-of-oracle  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/webcenter-portal). Vendors: [Oracle](https://junglewise.ai/threats/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

- [https://www.oracle.com/security-alerts/cpuoct2026.html](https://www.oracle.com/security-alerts/cpuoct2026.html)

## Related threats

- [Oracle WebCenter Portal information disclosure in Runtime Tools](https://junglewise.ai/threats/cve-2026-91248-vulnerability-in-the-oracle-webcenter-portal-product-of-oracle)
- [Oracle WebCenter Portal authorization bypass in Runtime Tools](https://junglewise.ai/threats/cve-2026-91247-vulnerability-in-the-oracle-webcenter-portal-product-of-oracle)
- [Oracle WebCenter Portal cross-site request forgery in Runtime Tools](https://junglewise.ai/threats/cve-2026-91246-vulnerability-in-the-oracle-webcenter-portal-product-of-oracle)
- [Oracle WebCenter Portal compromise via adjacent network access](https://junglewise.ai/threats/cve-2026-83065-oracle-webcenter-portal-compromise-via-adjacent-network-access)
- [Oracle WebCenter Portal privilege escalation in Runtime Tools](https://junglewise.ai/threats/cve-2026-83064-oracle-webcenter-portal-privilege-escalation-in-runtime-tools)