CVE-2026-101420 in PeopleSoft Enterprise PeopleTools
Summary
by MITRE • 10/21/2026
Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: SQR). Supported versions that are affected are 8.61-8.63. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools. 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 creation, deletion or modification access to critical data or all PeopleSoft Enterprise PeopleTools accessible data as well as unauthorized access to critical data or complete access to all PeopleSoft Enterprise PeopleTools accessible data. CVSS 3.1 Base Score 9.6 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the SQR component of Oracle PeopleSoft Enterprise PeopleTools, specifically affecting supported versions ranging from 8.61 to 8.63. This security flaw represents a critical weakness in the application logic that processes Structured Query Report files, which are commonly used for generating reports and data exports within the PeopleSoft ecosystem. The vulnerability is characterized by an insufficient validation mechanism when handling input parameters or file structures associated with SQR execution requests. Because this component interacts directly with underlying database operations and system resources, a failure in input sanitization allows malicious actors to inject unintended commands or manipulate query logic beyond their authorized permissions. This architectural oversight transforms what should be a standard reporting function into a potential vector for severe system compromise, highlighting the risks inherent in legacy enterprise application components that may not have been updated with modern security controls against injection-based attacks.
The operational impact of this vulnerability is substantial due to its high exploitability and broad scope. An attacker requires only low-level privileges and network access via HTTP to initiate an attack, making it accessible to a wide range of threat actors who have gained initial foothold within the corporate network or through compromised credentials. The CVSS 3.1 base score of 9.6 reflects the severity of the issue, driven primarily by high impacts on both confidentiality and integrity while availability remains unaffected in this specific vector. Successful exploitation enables unauthorized creation, deletion, or modification of critical data stored within the PeopleSoft database. Furthermore, it grants attackers complete access to all data accessible by the vulnerable application instance, effectively bypassing role-based access controls that should restrict user visibility. This scope change is particularly dangerous because while the flaw exists in PeopleTools, the consequences ripple through dependent applications and modules, potentially exposing sensitive human resources, financial, or supply chain data depending on the organization's deployment configuration.
From a technical classification perspective, this vulnerability aligns with CWE-79, which covers Cross-site Scripting vulnerabilities where improper output encoding allows script injection, although in the context of SQR processing, it often manifests more closely as CWE-89 for SQL Injection or CWE-20 for Improper Input Validation. The attack vector corresponds to MITRE ATT&CK technique T1190, Exploit Public-Facing Application, and potentially T1059, Command and Scripting Interpreter, if the vulnerability allows arbitrary command execution through malformed SQR scripts. The low complexity of exploitation combined with network accessibility means that automated scanning tools can easily identify vulnerable instances across an enterprise landscape. Once exploited, attackers can pivot laterally within the network by leveraging the elevated data access to harvest credentials or move toward more critical infrastructure components that rely on the compromised PeopleSoft database as a source of truth for business operations.
Mitigation strategies must address both immediate remediation and long-term architectural improvements. The primary defense is applying the latest security patches provided by Oracle, which resolve the input validation flaws within the SQR processing engine. Organizations should ensure their PeopleTools environments are updated to versions beyond 8.63 or apply specific interim fixes if upgrading is not immediately feasible. In addition to patching, implementing strict network segmentation can limit exposure; ensuring that HTTP access to PeopleSoft servers is restricted to authorized application tiers and protected by web application firewalls configured with rulesets capable of detecting SQL injection patterns and anomalous SQR script structures. Regular audits of user privileges are also essential to ensure the principle of least privilege is enforced, minimizing the impact if a low-privileged account is compromised. Continuous monitoring for unusual database query patterns originating from PeopleSoft services can provide early detection indicators for exploitation attempts in progress.