CVE-2026-83146

Received Received - Intake

Cross-Site Scripting in Oracle Siebel CRM End User

Publication date: 2026-09-15

Last updated on: 2026-09-18

Assigner: Oracle

Description

Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI). Supported versions that are affected are 17.0-26.7. Difficult to exploit 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 creation, deletion or modification access to critical data or all Siebel CRM End User accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM End User accessible data. CVSS 3.1 Base Score 7.7 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N).

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-15

Last Modified

2026-09-18

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83146

EUVD

EUVD-2026-79473

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_crm_end_user	From 17.0 (inc) to 26.7 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Siebel CRM End User (versions 17.0-26.7) that allows a low-privileged attacker with network access via HTTP to potentially compromise the system. Exploitation requires human interaction from someone other than the attacker and may impact additional products. Successful attacks can lead to unauthorized creation, deletion, or modification of critical data, as well as unauthorized access to all accessible data in Siebel CRM End User.

Detection Guidance

This vulnerability requires manual detection as no specific commands are provided in the CVE details. Focus on monitoring Siebel CRM End User HTTP traffic for unusual data access or modification patterns. Check logs for unauthorized changes to critical data or access attempts by low-privileged users.

Impact Analysis

If exploited, this vulnerability could allow attackers to modify or delete critical data, access sensitive information, or gain full control over the Siebel CRM End User system. This could disrupt business operations, lead to data breaches, or expose confidential customer or company data.

Compliance Impact

This vulnerability could lead to unauthorized access or modification of sensitive data, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Organizations using affected versions of Siebel CRM End User may face legal penalties, reputational damage, or loss of certification if data breaches occur due to this vulnerability.

Mitigation Strategies

Apply the latest Oracle Siebel CRM patches or updates for versions 17.0-26.7 to address the vulnerability. Restrict network access to the Siebel CRM End User component via HTTP to trusted sources only. Monitor for unauthorized data modifications or access attempts in the Siebel CRM system.

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