# CVE-2026-35296: Oracle WebCenter Sites authentication bypass and system takeover

Source: https://junglewise.ai/threats/cve-2026-35296-oracle-webcenter-sites-authentication-bypass-and-system-takeover  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-17. Updated: 2026-06-17  
License: CC BY 4.0 with a link back

CVE-2026-35296 · Severity: critical · CVSS 9.8 · Published 2026-06-17

Oracle WebCenter Sites, a platform used for managing large-scale web content and digital experiences, contains a critical security flaw. An unauthorized person can remotely take full control of the system over the internet without needing a username or password. This could lead to the complete theft of sensitive data, modification of website content, or a total shutdown of the service.

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

## Quick answers

**Is CVE-2026-35296 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-35296 being exploited in the wild.

**How severe is CVE-2026-35296?** Critical severity, with a CVSS score of 9.8, published 17 June 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-2026-35296?** 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-2026-35296 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-35296?** 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

A critical vulnerability exists in the WebCenter Sites component of Oracle Fusion Middleware, specifically affecting versions 12.2.1.4.0 and 14.1.2.0.0. The flaw is categorized as a missing authentication for a critical function (CWE-306), allowing an unauthenticated attacker with network access via HTTP to bypass security controls. This is an easily exploitable vulnerability that requires no user interaction. Successful exploitation results in a complete takeover of the Oracle WebCenter Sites instance, impacting confidentiality, integrity, and availability. Oracle has addressed this in their June 2026 security alerts.

## Affected products

- Oracle WebCenter Sites 12.2.1.4.0, 14.1.2.0.0

## Timeline

- 2026-06-17: disclosed
- 2026-06-17: advisory

## References

- [https://www.oracle.com/security-alerts/cspujun2026.html](https://www.oracle.com/security-alerts/cspujun2026.html)

## Related threats

- [Oracle WebCenter Sites unauthenticated data access](https://junglewise.ai/threats/cve-2026-91552-vulnerability-in-the-oracle-webcenter-sites-product-of-oracle)
- [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)