PatchSiren cyber security CVE debrief

CVE-2026-60555 Oracle Corporation CVE debrief

A critical vulnerability was discovered in Oracle WebCenter Sites, a component of Oracle Fusion Middleware. The vulnerability is easily exploitable, allowing unauthenticated attackers with network access via HTTP to compromise the site. Successful attacks can result in a complete takeover of Oracle WebCenter Sites. The vulnerability has a CVSS 3.1 Base Score of 9.8, indicating a high impact on confidentiality, integrity, and availability. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Administrators and users of Oracle WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0 should be aware of this vulnerability and take immediate action to mitigate the risk.

Vendor: Oracle Corporation
Product: Oracle WebCenter Sites
CVSS: CRITICAL 9.8
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-07-21
Original CVE updated: 2026-07-27
Advisory published: 2026-07-21
Advisory updated: 2026-07-27

Who should care

Administrators and users of Oracle WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0 should be aware of this vulnerability and take immediate action to mitigate the risk. This includes applying the latest security patches provided by Oracle, restricting access to Oracle WebCenter Sites to only trusted networks and users, and monitoring Oracle WebCenter Sites for any suspicious activity.

Technical summary

The vulnerability in Oracle WebCenter Sites has a CVSS 3.1 Base Score of 9.8, indicating a high impact on confidentiality, integrity, and availability. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. The vulnerability is easily exploitable, allowing unauthenticated attackers with network access via HTTP to compromise Oracle WebCenter Sites. Successful attacks can result in a complete takeover of Oracle WebCenter Sites. Oracle WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0 are confirmed affected.

Defensive priority

High

Recommended defensive actions

Apply the latest security patches provided by Oracle.
Restrict access to Oracle WebCenter Sites to only trusted networks and users.
Monitor Oracle WebCenter Sites for any suspicious activity.
Consider implementing additional security controls, such as web application firewalls.
Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-07-21T22:17:55.517Z and last modified on 2026-07-27T13:18:23.777Z. The NVD entry is currently Undergoing Analysis. Oracle WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0 are confirmed affected. Defenders should verify the official CVE record and NVD entry for the latest information. The vulnerability has a CVSS 3.1 Base Score of 9.8, indicating a high impact on confidentiality, integrity, and availability.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-21T22:17:55.517Z and has not been modified since then. The NVD entry is currently Undergoing Analysis.