# CVE-2026-83031: Oracle WebCenter Sites privilege escalation via HTTP

Source: https://junglewise.ai/threats/cve-2026-83031-oracle-webcenter-sites-privilege-escalation-via-http  
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-2026-83031 · Severity: critical · CVSS 9.9 · Published 2026-09-15

Oracle WebCenter Sites is a content management platform used to build and manage web applications and digital experiences. An attacker with low privileges and network access can exploit this vulnerability to fully compromise WebCenter Sites and potentially impact other connected systems. Successful exploitation enables complete takeover of the platform, affecting confidentiality, integrity, and availability of managed content and services.

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

## Quick answers

**Is CVE-2026-83031 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83031 being exploited in the wild.

**How severe is CVE-2026-83031?** Critical severity, with a CVSS score of 9.9, published 15 September 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-2026-83031?** A patch was published on 2026-09: Oracle Critical Patch Update Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-83031 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-83031?** 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

This is a low-privilege authentication bypass or privilege escalation vulnerability in Oracle WebCenter Sites. The vulnerability is easily exploitable and requires only network access via HTTP and a low-privileged user account; no complex preconditions or user interaction is needed. An authenticated attacker can achieve complete system compromise, potentially with scope change affecting downstream systems. The vulnerability affects WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0. Oracle has released security patches via their September 2026 Critical Patch Update.

## Affected products

- Oracle WebCenter Sites 12.2.1.4.0, 14.1.2.0.0

## Timeline

- 2026-09-15: disclosed
- 2026-09: patched: Oracle Critical Patch Update

## References

- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.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)