CVE-2026-83018 in PeopleSoft Enterprise PeopleTools
Summary
by MITRE • 09/16/2026
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 logon to the infrastructure where PeopleSoft Enterprise PeopleTools executes to compromise PeopleSoft Enterprise PeopleTools. Successful attacks of this vulnerability can result in takeover of PeopleSoft Enterprise PeopleTools. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 09/16/2026
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 risk vector for organizations relying on these legacy or mid-range releases of the enterprise resource planning and human capital management suite. The core issue stems from an improper handling of input data within the SQR reporting engine, which allows for unauthorized command execution or privilege escalation under specific conditions. While the vulnerability is classified as easily exploitable, it requires a baseline level of access that may limit its immediate threat landscape compared to remote code execution flaws. Specifically, an attacker must possess valid logon credentials and have network-level access to the infrastructure where PeopleSoft Enterprise PeopleTools executes. This prerequisite means that external attackers without prior authentication cannot directly exploit this flaw from the public internet, thereby narrowing the attack surface primarily to insider threats or compromised internal accounts with low-privileged status.
From a technical perspective, the vulnerability enables an attacker who has already gained access to the system through legitimate but limited credentials to escalate their privileges significantly. The SQR component processes reports and scripts that interact directly with underlying operating system commands or database structures. Due to insufficient validation of user-supplied input within these processing routines, an authenticated low-privileged user can inject malicious payloads that are executed by the application server with higher privileges than intended. This mechanism aligns closely with CWE-78 Improper Neutralization of Special Elements used in an OS Command and CWE-269 Improvement of Privilege, as it allows a lower-level actor to gain control over critical system functions. The successful exploitation leads to a complete compromise of the PeopleSoft Enterprise PeopleTools environment, granting the attacker full administrative control over the application layer. This level of access permits the modification or deletion of sensitive business data, interception of confidential information, and disruption of available services, effectively resulting in a total takeover of the affected system components.
The operational impact of this vulnerability is severe, as reflected by its CVSS 3.1 Base Score of 7.8, which indicates a High severity rating. The vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) details that while the attack vector is local and requires low privileges, it demands little complexity to execute and involves no user interaction. Crucially, the scope remains unchanged, meaning the vulnerability affects only resources managed by the vulnerable component, yet all three pillars of security—confidentiality, integrity, and availability—are heavily impacted at a high level. In an enterprise context, this means that once exploited, an attacker can exfiltrate sensitive employee or financial data, alter transaction records to conceal fraudulent activities, or crash critical business processes leading to operational downtime. The lack of user interaction requirement further exacerbates the risk, as automated scripts could potentially be used by attackers who have already infiltrated the network perimeter via other means, such as phishing or credential stuffing attacks that result in low-privileged account compromise.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. The primary defense is to apply the latest security patches provided by Oracle for PeopleTools versions 8.61 through 8.63 immediately upon availability. Organizations should verify their current version against Oracle’s supported release matrix to ensure they are not running deprecated software that may lack critical updates. In addition to patching, implementing strict access controls is essential. Principle of least privilege must be enforced rigorously across all PeopleSoft environments, ensuring that application service accounts and user profiles have only the minimum permissions necessary for their specific roles. Network segmentation should also be reviewed to isolate PeopleTools servers from general corporate networks where possible, reducing the likelihood of an attacker reaching the infrastructure even with valid credentials. Furthermore, monitoring tools should be configured to detect anomalous SQR report executions or unexpected command-line activities originating from application server processes. Aligning these controls with MITRE ATT&CK techniques such as T1059 Command and Scripting Interpreter for execution and T1078 Valid Accounts for initial access can help in detecting potential exploitation attempts before they result in full system compromise.