# CVE-2026-73957: Oracle WebCenter Portal XSS or authentication bypass in Portlet Services

Source: https://junglewise.ai/threats/cve-2026-73957-oracle-webcenter-portal-xss-or-authentication-bypass-in-portlet  
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-2026-73957 · Severity: critical · CVSS 9.3 · Published 2026-09-15

Oracle WebCenter Portal is an enterprise portal and content management platform used to build collaborative workspaces and web applications. An unauthenticated attacker can exploit this vulnerability over the network to read, modify, or delete sensitive data stored in the portal, requiring only that a legitimate user interact with a malicious link or content. The vulnerability has a wide scope of impact, potentially affecting other connected systems and applications.

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

## Quick answers

**Is CVE-2026-73957 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-73957 being exploited in the wild.

**How severe is CVE-2026-73957?** Critical severity, with a CVSS score of 9.3, 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-2026-73957?** 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-2026-73957 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-73957?** 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 Portlet Services component of Oracle WebCenter Portal that allows unauthenticated network access via HTTP. The attack requires user interaction (UI:R) and results in scope change (S:C), indicating that the vulnerability in WebCenter Portal can impact security boundaries of other systems. The vulnerability permits unauthorized creation, deletion, modification, and read access to critical data. While the exact vulnerability class is not specified in the advisory, the combination of unauthenticated network access, user interaction requirement, and data manipulation capabilities suggests either a cross-site scripting (XSS) or authentication bypass flaw. Oracle has released patches for affected versions 12.2.1.4.0 and 14.1.2.0.0.

## 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)