EUVD-2026-79359
GHSA-m2c5-q25p-9243
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Network HTTP with low complexity and a required low-privilege account (PR:L, not pre-auth); scope change and full takeover justify S:C and C:H/I:H/A:H, matching Oracle's honest 9.9.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
4DescriptionNVD
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 low privileged attacker with network access via HTTP to compromise Oracle WebCenter Sites. While the vulnerability is in Oracle WebCenter Sites, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Sites. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
AnalysisAI
A low-privileged authenticated attacker with network access over HTTP can achieve complete takeover of Oracle WebCenter Sites 12.2.1.4.0 and 14.1.2.0.0, with a CVSS 3.1 base score of 9.9 - the scope-change flag (S:C) indicates that a successful compromise can also significantly impact other co-located Fusion Middleware and WebLogic components, not just Sites itself. No user interaction is required, though valid low-privilege credentials (or a low-privilege session that can be obtained) are a prerequisite, so this is not pre-authentication. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires a low-privileged authenticated account (CVSS PR:L) on Oracle WebCenter Sites 12.2.1.4.0 or 14.1.2.0.0 with network HTTP reachability to the vulnerable component; no user interaction is needed. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine high-priority vulnerability with a well-calibrated CVSS 9.9. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the Oracle Critical Patch Update referenced in https://www.oracle.com/security-alerts/cspusep2026.html at the earliest opportunity - this is the authoritative fix source and the vendor-released patched version is specified there for the affected 12.2.1.4.0 and 14.1.2.0.0 release lines (patch available per vendor advisory; the exact fixed build is not stated in the provided data, so confirm it in the advisory before upgrade). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, confirm whether Oracle WebCenter Sites 12.2.1.4.0 or 14.1.2.0.0 is running anywhere in the estate, log the owning business unit and data classification for each instance, and raise a formal risk acceptance or remediation ticket with the platform owner; simultaneously restrict network reachability to the Sites HTTP interface so that only known administrative and authoring subnets, VPN pools, and service accounts can connect, and review the current inventory of low-privilege accounts, service accounts, and stale sessions on those systems. …
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