CVE-2026-46856: XSS
Vulnerability in the Oracle Enterprise Manager Base Platform product of Oracle Enterprise Manager (component: Metadata Plugin). Supported versions that are affected are 13.5 and 24.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Enterprise Manager Base Platform. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Enterprise Manager Base Platform, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Enterprise Manager Base Platform. 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).
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Restrict network access to the Oracle Enterprise Manager Base Platform HTTP interface (including instances of the Metadata Plugin) to trusted management IP ranges and internal networks only (e.g., via firewall rules, ACLs, VPN). Block direct public/Internet access to affected installations (notably versions 13.5 and 24.1).
- Compensating control
Place the Oracle Enterprise Manager HTTP endpoints behind a Web Application Firewall (WAF) or reverse proxy that can inspect and block malicious HTTP requests and enforce tighter HTTP method and URI filtering to reduce exposure to remote exploit attempts.
- Operational
Increase monitoring and logging of Oracle Enterprise Manager (HTTP access logs, application logs, IDS/IPS alerts). If suspicious activity or signs of compromise are detected, immediately isolate affected systems, perform incident response and forensics, and contain/remove the attacker before applying vendor fixes when available.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-46856?
CVE-2026-46856 has a critical severity rating of 9.6.
What is the risk associated with CVE-2026-46856?
CVE-2026-46856 has an associated risk score of 80.
How do I fix CVE-2026-46856?
To fix CVE-2026-46856, upgrade to the latest supported version of Oracle Enterprise Manager Base Platform.
What components are affected by CVE-2026-46856?
CVE-2026-46856 affects the Metadata Plugin component of the Oracle Enterprise Manager Base Platform.
Can CVE-2026-46856 be exploited remotely?
Yes, CVE-2026-46856 can be exploited remotely by an unauthenticated attacker with network access via HTTP.