CVE-2026-101403

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Cross-Site Scripting in Siebel Apps - Marketing

Publication date: 2026-10-20

Last updated on: 2026-10-23

Assigner: Oracle

Description

Vulnerability in the Siebel Apps - Marketing product of Oracle Siebel CRM (component: Email Marketing). Supported versions that are affected are 17.0-26.9. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel Apps - Marketing. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel Apps - Marketing accessible data as well as unauthorized update, insert or delete access to some of Siebel Apps - Marketing accessible data. CVSS 3.1 Base Score 5.9 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N).

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Meta Information

Published

2026-10-20

Last Modified

2026-10-23

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101403

EUVD

EUVD-2026-105819

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	Siebel Apps - Marketing	17.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-601	The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.

Attack-Flow Graph

Executive Summary

This vulnerability affects Oracle Siebel CRM's Siebel Apps - Marketing component, specifically versions 17.0 to 26.9. It allows an unauthenticated attacker to potentially access or modify data through the HTTP protocol. Exploitation requires the victim to interact with a malicious link or page. The impact includes unauthorized access to sensitive data and limited ability to alter data.

Detection Guidance

This vulnerability is specific to Oracle Siebel Apps - Marketing and requires network access via HTTP. Detection would involve checking for unusual HTTP traffic patterns or unauthorized access attempts to the Siebel Apps - Marketing component. No specific commands are provided in the available context.

Impact Analysis

If you use Oracle Siebel Apps - Marketing versions 17.0 to 26.9, an attacker could gain access to critical or all accessible data in the system. They might also modify or delete some data. This requires tricking a user into clicking a malicious link.

Compliance Impact

This vulnerability could lead to unauthorized access or modification of sensitive data, which may violate GDPR or HIPAA requirements for data protection and integrity. Organizations using affected versions may face compliance risks if data is compromised.

Mitigation Strategies

Apply the latest security patches from Oracle for Siebel Apps - Marketing versions 17.0-26.9. Restrict network access to HTTP ports used by the component. Monitor for unusual activity in email marketing modules and review user permissions for unauthorized changes.

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