# CVE-2026-46765: Oracle WebCenter Portal improper access control in Composer

Source: https://junglewise.ai/threats/cve-2026-46765-oracle-webcenter-portal-improper-access-control-in-composer  
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-2026-46765 · Severity: critical · CVSS 9.9 · Published 2026-06-17

Oracle WebCenter Portal, a platform used for building enterprise portals and managing business content, contains a critical security flaw in its Composer component. A user with even low-level access can exploit this vulnerability over the network to take full control of the portal. This could lead to the theft of sensitive corporate data, disruption of business operations, and potential unauthorized access to other integrated business systems.

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

## Quick answers

**Is CVE-2026-46765 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-46765 being exploited in the wild.

**How severe is CVE-2026-46765?** Critical severity, with a CVSS score of 9.9, published 17 June 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-2026-46765?** 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-2026-46765 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-46765?** 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

An improper access control vulnerability (CWE-284) exists in the Composer component of Oracle WebCenter Portal. The flaw is easily exploitable via HTTP by a low-privileged attacker with network access. Due to a scope change (Status: Changed), a successful exploit allows the attacker to compromise not only the WebCenter Portal instance but potentially impact additional integrated products. This can result in a complete takeover of the application, impacting confidentiality, integrity, and availability. Affected versions include 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

- 2026-06-17: disclosed
- 2026-06-17: advisory: Oracle Security Alert published

## References

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