# CVE-2026-73956: Oracle WebCenter Portal remote code execution in Composer

Source: https://junglewise.ai/threats/cve-2026-73956-oracle-webcenter-portal-remote-code-execution-in-composer  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-73956 · Severity: critical · CVSS 9.8 · Published 2026-09-15

Oracle WebCenter Portal is a web-based platform for building and managing enterprise portals and collaboration spaces. An unauthenticated remote attacker can exploit this vulnerability over the network to gain complete control of the affected system, compromising confidentiality, integrity, and availability of portal data and services.

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

## Quick answers

**Is CVE-2026-73956 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-73956 being exploited in the wild.

**How severe is CVE-2026-73956?** Critical severity, with a CVSS score of 9.8, published 15 September 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-2026-73956?** 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-2026-73956 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-73956?** 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 an easily exploitable vulnerability in the Composer component of Oracle WebCenter Portal that allows unauthenticated remote code execution. The vulnerability is reachable via HTTP without authentication or user interaction required. A successful attack results in complete compromise of the WebCenter Portal system, including unauthorized access to all data and the ability to modify or delete content. The vulnerability affects Oracle WebCenter Portal versions 12.2.1.4.0 and 14.1.2.0.0; patch information was not accessible from the provided advisory sources.

## Affected products

- Oracle WebCenter Portal 12.2.1.4.0, 14.1.2.0.0

## Timeline

- 2026-09-15: disclosed

## References

- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.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 information disclosure in Runtime Tools](https://junglewise.ai/threats/cve-2026-91245-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)