CVE-2026-101391

Analyzed Analyzed - Analysis Complete

Cross-Site Scripting in Siebel Apps - Marketing

Publication date: 2026-10-20

Last updated on: 2026-11-05

Assigner: Oracle

Description

Vulnerability in the Siebel Apps - Marketing product of Oracle Siebel CRM (component: Marketing). Supported versions that are affected are 17.0-26.9. Easily exploitable 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 and while the vulnerability is in Siebel Apps - Marketing, 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 Apps - Marketing accessible data as well as unauthorized read access to a subset of Siebel Apps - Marketing accessible data. CVSS 3.1 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-05

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101391

EUVD

EUVD-2026-105807

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_crm	From 17.0 (inc) to 26.9 (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's Siebel Apps - Marketing product affecting versions 17.0 to 26.9. It allows an unauthenticated attacker with network access via HTTP to potentially compromise the system. Exploitation requires human interaction from someone other than the attacker.

Detection Guidance

This vulnerability requires detecting Oracle Siebel Apps - Marketing versions 17.0-26.9 with network access via HTTP. Check application logs for unusual HTTP requests targeting the Marketing component. Inspect network traffic for unauthenticated access attempts to Siebel Apps endpoints. Verify if user interaction is required for exploitation by reviewing application behavior during testing.

Impact Analysis

An attacker could gain unauthorized access to modify, insert, or delete data in Siebel Apps - Marketing. They could also read some data. The impact is limited to confidentiality and integrity with a CVSS score of 6.1.

Compliance Impact

This vulnerability may lead to unauthorized access to sensitive data, which could violate compliance requirements under GDPR (data protection) and HIPAA (health information privacy). Unauthorized read, update, or delete access to data could result in non-compliance with these regulations.

Mitigation Strategies

Apply the latest security patches from Oracle for Siebel Apps - Marketing versions 17.0-26.9. Restrict network access to the HTTP interface of the affected component. Monitor for unusual data access or modification patterns in the Siebel Apps - Marketing system.

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