CVE-2026-83043CWE-284broken-access-control

CVE-2026-83043

Critical · published September 16, 2026

CVSS v3.1
9.6
EPSS
0%
Percentile
34.8
In the wild
Unconfirmed
What it is

Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Composer). 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 Portal. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle WebCenter Portal, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Portal. CVSS 3.1 Base Score 9.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H).

The record
Technical detail
CVSS v3.1
9.6 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00416 · 34.8th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-09-16T00:18Z
Affected products (2)
ProductVersionsFixed in
oracle/webcenter_portalall versions—
oracle/webcenter_portalall versions—
References (1)
https://www.oracle.com/security-alerts/cspusep2026.html · [email protected]
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 15 SEP 20:03Z
    Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Composer)
    cvelistv5