CVE-2026-83034 Missing authorization in Oracle WebCenter Sites
Unauthenticated attackers can access critical data in Oracle WebCenter Sites due to missing authorization controls.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-83034?
CVE-2026-83034 is a high-severity missing authorization vulnerability in Oracle Webcenter Portal, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Sites. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle WebCenter Sites accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
Weakness: CWE-284
Which versions are affected by CVE-2026-83034?
It affects 1 product.
Products include Oracle Webcenter Portal.
How do I fix CVE-2026-83034?
No fix has been published for CVE-2026-83034 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-83034 being exploited?
There is no known exploitation of CVE-2026-83034 in the wild and no public exploit code.
Other vulnerabilities in Oracle Webcenter Portal
Sources
Also known as GHSA-7587-xc2v-9q32.