Live › vulnerability › CVE-2026-91390
Go to dashboardOracle Siebel CRM End User has a flaw in its Open UI component that lets a low-privileged user over HTTP read and change a subset of accessible data when another person interacts with a crafted request. The sources say the attack can also affect other products (scope change), with a CVSS 3.1 base score of 5.4.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
Organisations running Siebel CRM End User in the affected supported version range 17.0 through 26.9, as stated by the sources. The sources do not say which deployment settings or roles make a site more exposed, so whether a given install is affected needs checking against Oracle's advisory.
No product ranges from the sources yet.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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 low privileged attacker with network access via HTTP to compromise Siebel CRM End User. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Siebel CRM End User, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Siebel CRM End User accessible data as well as unauthorized read access to a subset of Siebel CRM End User accessible data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N).
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