# CVE-2026-61140: Oracle WebCenter Sites remote compromise and takeover

Source: https://junglewise.ai/threats/cve-2026-61140-oracle-webcenter-sites-remote-compromise-and-takeover  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-21. Updated: 2026-07-22  
License: CC BY 4.0 with a link back

CVE-2026-61140 · Severity: critical · CVSS 9.8 · Published 2026-07-21

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 any login credentials. This could lead to a total loss of data confidentiality, unauthorized modification of website content, and disruption of business operations.

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

## Quick answers

**Is CVE-2026-61140 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-61140 being exploited in the wild.

**How severe is CVE-2026-61140?** Critical severity, with a CVSS score of 9.8, published 21 July 2026.

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

**Is there a fix for CVE-2026-61140?** 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-2026-61140 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-61140?** 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 version 14.1.2.0.0. The flaw is easily exploitable by an unauthenticated attacker with network access via HTTP. While the specific CWE is not provided in the advisory, the high CVSS score and 'takeover' description suggest a remote code execution (RCE) or complete authentication bypass. Successful exploitation results in a total compromise of confidentiality, integrity, and availability (CVSS 9.8). Users should refer to the Oracle Critical Patch Update (CPU) for July 2026 for remediation steps.

## Affected products

- Oracle WebCenter Sites 14.1.2.0.0

## Timeline

- 2026-07-21: disclosed
- 2026-07-21: advisory: Published in Oracle Critical Patch Update July 2026

## References

- [https://www.oracle.com/security-alerts/cpujul2026.html](https://www.oracle.com/security-alerts/cpujul2026.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)