# CVE-2026-91552: Oracle WebCenter Sites unauthenticated data access

Source: https://junglewise.ai/threats/cve-2026-91552-vulnerability-in-the-oracle-webcenter-sites-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-2026-91552 · Severity: high · CVSS 7.5 · Published 2026-10-20

Oracle WebCenter Sites is a content management platform used to build and manage web applications. An unauthenticated attacker on the network can exploit an HTTP vulnerability to gain unauthorized access to sensitive data stored in the system, potentially exposing all content and data within WebCenter Sites.

Technologies: [Oracle WebCenter Sites](https://junglewise.ai/threats/technologies/webcenter-sites). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-91552 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91552 being exploited in the wild.

**How severe is CVE-2026-91552?** High severity, with a CVSS score of 7.5, published 20 October 2026.

**Which products and versions are affected?** Oracle WebCenter Sites 12.2.1.4.0, 14.1.2.0.0.

**Is there a fix for CVE-2026-91552?** 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-2026-91552 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-91552?** Check whether you run Oracle WebCenter Sites 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

An easily exploitable unauthenticated vulnerability in Oracle WebCenter Sites allows network-based attackers to access the application via HTTP without credentials. The vulnerability impacts confidentiality through unauthorized data access but does not affect system integrity or availability. Affected versions 12.2.1.4.0 and 14.1.2.0.0 require patching to remediate the issue.

## Affected products

- Oracle WebCenter Sites 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 Sites unauthorized data access via HTTP](https://junglewise.ai/threats/cve-2026-91542-vulnerability-in-the-oracle-webcenter-sites-product-of-oracle)
- [Oracle WebCenter Sites unauthorized data access vulnerability](https://junglewise.ai/threats/cve-2026-91240-vulnerability-in-the-oracle-webcenter-sites-product-of-oracle)
- [Oracle WebCenter Sites remote code execution](https://junglewise.ai/threats/cve-2026-101499-vulnerability-in-the-oracle-webcenter-sites-product-of-oracle)
- [Oracle WebCenter Sites remote code execution](https://junglewise.ai/threats/cve-2026-83037-oracle-webcenter-sites-remote-code-execution)
- [Oracle WebCenter Sites unauthenticated remote code execution](https://junglewise.ai/threats/cve-2026-83036-oracle-webcenter-sites-unauthenticated-remote-code-execution)