CVE-2026-91428: Medium severity Oracle Siebel CRM End User vulnerability
Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI). Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM End User. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Siebel CRM End User accessible data. CVSS 3.1 Base Score 4.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N).
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
An unauthenticated attacker with network access to the affected Siebel CRM End User Open UI over HTTP can attempt exploitation. The attacker does not need prior credentials, but a person other than the attacker must interact with the attack.
Which deployments are affected?
Affected supported versions are 17.0 through 26.9 of Oracle Siebel CRM End User, specifically the Open UI component. The provided information does not identify any configuration prerequisite beyond exposure through HTTP.
What could a successful attack allow?
A successful attack can result in unauthorized update, insert, or delete access to some data accessible through Siebel CRM End User. The stated impact is limited to integrity; no confidentiality or availability impact is specified.