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How CVE-2026-61073 Works
CVE-2026-61073 is an improper access control vulnerability affecting the Purchasing component of Oracle PeopleSoft Enterprise FIN Common Objects Brazil, version 9.1. The flaw resides in the authorization logic of the Purchasing module, where the application fails to properly verify whether an incoming request is authorized to access sensitive purchasing and financial data.
The vulnerability is classified under CWE-285 (Improper Authorization) and CWE-284 (Improper Access Control). It allows an unauthenticated attacker with network access to send specially crafted HTTP requests directly to the affected Purchasing component endpoint. Because the authorization checks are bypassed entirely, the server processes these requests without validating the user’s identity or privileges.
The attack requires no authentication, no user interaction, and can be launched remotely over HTTP with low complexity. The attacker does not need to be in a privileged network position; standard network connectivity to the PeopleSoft web tier is sufficient. Once a crafted request reaches the vulnerable endpoint, the server responds with the requested data — which may include critical financial records, purchase orders, vendor details, and other sensitive procurement information stored within the PeopleSoft FIN Common Objects Brazil module.
The vulnerability impacts only confidentiality (C:H), with no effect on integrity or availability (I:N/A:N). The CVSS 3.1 Base Score is 7.5 (HIGH), with the vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. The vulnerability was disclosed as part of Oracle’s July 2026 Critical Patch Update on July 21, 2026. There is currently no public exploit available, though exploit market prices are estimated between USD $5,000 and $25,000. The MITRE ATT&CK technique associated with this flaw is T1548.002 (Abuse Elevation Control Mechanism).
DailyCVE Form:
Platform: ……. Oracle PeopleSoft
Version: …….. 9.1
Vulnerability :…… Improper Access Control
Severity: ……. HIGH (7.5)
date: ………. 2026-07-21
Prediction: ……. 2026-08-15
What Undercode Say: Analytics
Check PeopleSoft version from PS_HOME cat $PS_HOME/scripts/psver.txt | grep "PeopleTools" Query PeopleSoft release from database SELECT VERSION FROM PSVERSION; Identify exposed Purchasing endpoints (example) curl -k -X GET https://<target>/psp/ps/EMPLOYEE/HRMS/c/PURCHASING.GBL Test for unauthenticated access to purchasing data (PoC-style request) curl -k -X GET "https://<target>/psc/ps/EMPLOYEE/HRMS/PO_PROCESS?ICAction=ICQuery" \ -H "Accept: application/json" Check if endpoint returns data without authentication curl -k -X POST "https://<target>/psws/PO_SERVICE" \ -H "Content-Type: application/xml" \ -d "<PORequest><Action>GET_PO</Action><PO_ID>12345</PO_ID></PORequest>" Audit PeopleSoft access logs for anomalous unauthenticated requests grep -E "GET /ps[bash]/./PURCHASING" $PS_HOME/webserv//logs/access.log | \ grep -v "USERID=" Monitor for 200 OK responses without prior authentication awk '/"GET \/ps[bash]\/.PURCHASING/ && /200/ && !/USERID=/' \ $PS_HOME/webserv//logs/access.log Enumerate all exposed PeopleSoft web services curl -k -X GET "https://<target>/psws/wsdl" 2>/dev/null | grep -i "purchase"
Exploit
There is no public exploit available for CVE-2026-61073 at this time. However, the attack vector is well understood:
1. Identify a PeopleSoft Enterprise FIN Common Objects Brazil 9.1 instance with the Purchasing component exposed via HTTP.
2. Craft a direct HTTP request to the vulnerable Purchasing endpoint — typically a servlet, web service, or PeopleSoft component interface that handles purchasing data retrieval.
3. The request is sent without any authentication headers, cookies, or session tokens.
4. The server, due to the missing authorization check, processes the request and returns sensitive purchasing data (purchase orders, vendor information, financial amounts, etc.) in the response.
5. The attacker can iterate over different parameters (e.g., PO_ID ranges, date filters) to exfiltrate the entire dataset accessible via the Purchasing module.
The flaw is classified as “easily exploitable” with low attack complexity. No user interaction or privileges are required, making this a high-risk, low-effort attack for any external or internal actor with network access to the vulnerable system.
Protection
- Apply Oracle’s July 2026 Critical Patch Update (CPU): The official fix for CVE-2026-61073 is included in the July 2026 CPU for PeopleSoft Enterprise FIN Common Objects Brazil 9.1. Apply this patch immediately to all affected instances.
- Restrict network access: If patching is delayed, implement firewall rules or network segmentation to restrict HTTP access to the PeopleSoft Purchasing component endpoints. Allow only trusted IP ranges.
- Disable unnecessary endpoints: Review and disable any Purchasing-related web services or servlets that are not strictly required for business operations.
- Enable authentication enforcement: Configure PeopleSoft web server security to require authentication for all Purchasing component URLs, even if the application logic is later fixed.
- Monitor access logs: Regularly review PeopleSoft access logs for unauthorized or anomalous unauthenticated requests targeting Purchasing-related endpoints.
- Implement Web Application Firewall (WAF): Deploy WAF rules to block requests to known Purchasing component endpoints that lack proper authentication headers.
- Conduct vulnerability scans: Use scanning tools to identify instances of PeopleSoft 9.1 with exposed Purchasing components and verify patch compliance.
Impact
- Confidentiality Breach (High): An unauthenticated attacker can gain unauthorized read access to all purchasing and financial data stored within the PeopleSoft Enterprise FIN Common Objects Brazil module. This includes purchase orders, vendor contracts, pricing information, payment terms, and other sensitive procurement records.
- Data Exfiltration: Attackers can systematically enumerate and export the entire purchasing dataset, leading to competitive intelligence leaks, supply chain exposure, and potential regulatory violations.
- Compliance Violations: Exposure of financial purchasing data may violate industry regulations (e.g., GDPR, SOX, PCI-DSS) depending on the nature of the data and the organization’s jurisdiction.
- Reputational Damage: Public disclosure of a data breach stemming from this vulnerability could severely damage customer and partner trust.
- No Integrity or Availability Impact: The vulnerability does not allow data modification or system disruption (I:N/A:N), but the confidentiality impact alone is sufficient to cause significant business harm.
- High Exploitability: With network accessibility, no authentication, and low complexity, this flaw is a prime target for both automated scanning tools and manual attackers.
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Sources:
Reported By: nvd.nist.gov
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