Description
Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Business Interlink). Supported versions that are affected are 8.61-8.63. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in PeopleSoft Enterprise PeopleTools, 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 PeopleSoft Enterprise PeopleTools accessible data as well as unauthorized read access to a subset of PeopleSoft Enterprise PeopleTools 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).
Published: 2026-10-20
Score: 6.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized data modification and disclosure
Action: Apply Patch
AI Analysis

Impact

The flaw resides in the Business Interlink component of Oracle PeopleSoft Enterprise PeopleTools. An unauthenticated attacker with network access over HTTP can exploit the defect, compromising the application. When successfully leveraged, the attacker can perform unauthorized updates, insertions, or deletions on data that should be protected, as well as read sensitive information, causing confidentiality and integrity loss. The weakness stems from insufficient authentication and authorization controls.

Affected Systems

Oracle PeopleSoft Enterprise PeopleTools version 8.61 through 8.63, specifically the Business Interlink component, are affected. Organizations running these releases or any product that depends on or interacts with this component may be impacted due to the scope change noted in the advisory.

Risk and Exploitability

The CVSS v3.1 base score of 6.1 reflects moderate severity with moderate confidentiality and integrity impact. However, the exploit probability is low (EPSS < 1 %) and the vulnerability is not listed in CISA’s KEV catalog. Attackers require HTTP network access and a user‑interaction event from a person other than the attacker, which limits the feasibility of automated attacks. Nonetheless, a successful exploitation would grant an adversary the ability to alter or read protected business data.

Generated by OpenCVE AI on October 28, 2026 at 15:56 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the Oracle PeopleSoft security patch referenced in the Oracle CPU Oct 2026 advisory, which addresses the vulnerability in versions 8.61‑8.63.
  • Restrict network access to PeopleSoft nodes to trusted networks or enforce VPN usage to block unauthenticated HTTP traffic.
  • Configure strict access controls and enforce least privilege, ensuring only authorized users can perform data modification operations.
  • Enable comprehensive auditing of all data modification attempts and actively monitor logs for anomalous activity.

Generated by OpenCVE AI on October 28, 2026 at 15:56 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 28 Oct 2026 16:15:00 +0000

Type Values Removed Values Added
Title Unauthorized Data Modification and Disclosure via Business Interlink Authentication Bypass

Wed, 28 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200
Metrics ssvc

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


Wed, 28 Oct 2026 02:00:00 +0000

Type Values Removed Values Added
Title Unauthorized Data Modification and Disclosure via Business Interlink Authentication Bypass

Tue, 27 Oct 2026 23:30:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Exploit Allowing Unauthorized Data Modification in Oracle PeopleSoft PeopleTools Business Interlink
Weaknesses CWE-284
CWE-862

Tue, 27 Oct 2026 14:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-306

Wed, 21 Oct 2026 20:15:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Exploit Allowing Unauthorized Data Modification in Oracle PeopleSoft PeopleTools Business Interlink
Weaknesses CWE-284
CWE-862

Tue, 20 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Business Interlink). Supported versions that are affected are 8.61-8.63. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in PeopleSoft Enterprise PeopleTools, 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 PeopleSoft Enterprise PeopleTools accessible data as well as unauthorized read access to a subset of PeopleSoft Enterprise PeopleTools 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).
First Time appeared Oracle
Oracle peoplesoft Enterprise Peopletools
CPEs cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle peoplesoft Enterprise Peopletools
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}


Subscriptions

Oracle Peoplesoft Enterprise Peopletools
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-28T13:25:20.308Z

Reserved: 2026-09-08T21:49:12.412Z

Link: CVE-2026-87345

cve-icon Vulnrichment

Updated: 2026-10-28T13:25:03.823Z

cve-icon NVD

Status : Modified

Published: 2026-10-20T22:20:12.133

Modified: 2026-10-28T14:17:06.053

Link: CVE-2026-87345

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-28T16:00:17Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor

  • CWE-306

    Missing Authentication for Critical Function