CVE-2026-70855

Unauthenticated HTTP Vulnerability in Oracle Siebel Apps Self Service Could Lead to Data Modification

Published Aug 18, 2026 CVSS 3.1 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
Vulnerability in the Siebel Apps - Self Service product of Oracle Siebel CRM (component: Helpdesk/Training). Supported versions that are affected are 17.0-26.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel Apps - Self Service. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Siebel Apps - Self Service, 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 Apps - Self Service accessible data as well as unauthorized access to critical data or complete access to all Siebel Apps - Self Service accessible data. CVSS 3.1 Base Score 9.3 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Unauthenticated HTTP Vulnerability in Oracle Siebel Apps Self Service Could Lead to Data Modification
Type Values Removed Values Added
Title Unauthenticated HTTP Vulnerability Enables Unauthorized Data Modification in Oracle Siebel Apps – Self Service
Weaknesses CWE-200
CWE-639
Type Values Removed Values Added
Weaknesses CWE-284
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Oracle Corporation
Oracle Corporation siebel Apps - Self Service
Vendors & Products Oracle Corporation
Oracle Corporation siebel Apps - Self Service
Type Values Removed Values Added
Title Unauthenticated HTTP Vulnerability Enables Unauthorized Data Modification in Oracle Siebel Apps – Self Service
Weaknesses CWE-200
CWE-639
Type Values Removed Values Added
Title Unauthenticated HTTP Exploit in Oracle Siebel Apps Self Service Enables Unauthorized Data Modification
Weaknesses CWE-284
CWE-640
Type Values Removed Values Added
Title Unauthenticated HTTP Exploit in Oracle Siebel Apps Self Service Enables Unauthorized Data Modification
Weaknesses CWE-284
CWE-640
Type Values Removed Values Added
Description Vulnerability in the Siebel Apps - Self Service product of Oracle Siebel CRM (component: Helpdesk/Training). Supported versions that are affected are 17.0-26.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel Apps - Self Service. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Siebel Apps - Self Service, 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 Apps - Self Service accessible data as well as unauthorized access to critical data or complete access to all Siebel Apps - Self Service accessible data. CVSS 3.1 Base Score 9.3 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N).
First Time appeared Oracle
Oracle siebel Apps - Self Service
CPEs cpe:2.3:a:oracle:siebel_apps_-_self_service:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle siebel Apps - Self Service
References
Metrics cvssV3_1

{'score': 9.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
oracle
Published
Updated
Aug 26, 2026, 2:16 PM
Reserved
Aug 4, 2026, 10:06 PM
Status
Awaiting Analysis
Published
Aug 18, 2026, 9:17 PM
Modified
Oct 22, 2026, 5:09 PM