CVE-2026-62487: 
Oracle E-Business Suite vulnerability analysis and mitigation

CVE-2026-62487 is a Cross-Site Request Forgery (CSRF) vulnerability in the Oracle Contracts Integration component (Internal Operations) of Oracle E-Business Suite. It affects supported versions 12.2.3 through 12.2.15 and was published on July 21, 2026, as part of Oracle's July 2026 Critical Patch Update. The vulnerability carries a CVSS v3.1 base score of 6.1 (Medium) (Oracle CPU Jul 2026, Github Advisory).

The vulnerability is classified as CWE-352 (Cross-Site Request Forgery), meaning the Oracle Contracts Integration application does not sufficiently verify whether HTTP requests were intentionally submitted by the authenticated user. An unauthenticated remote attacker can craft a malicious HTTP request that, when triggered by a victim user's browser session, performs unauthorized actions on the Oracle Contracts Integration application. The attack requires no privileges and has low complexity, but does require human interaction (a victim user must visit or interact with attacker-controlled content). The changed scope indicates that a successful attack can impact components beyond the directly vulnerable Oracle Contracts Integration module (Github Advisory, Oracle CPU Jul 2026).

Successful exploitation allows an unauthenticated attacker to perform unauthorized update, insert, or delete operations on a subset of Oracle Contracts Integration accessible data, as well as gain unauthorized read access to some of that data. There is no availability impact, but the scope change means that other Oracle E-Business Suite products sharing the same environment may also be affected. Sensitive contract-related business data could be exposed or tampered with, potentially impacting business operations and data integrity (Oracle CPU Jul 2026, Github Advisory).

1. Reconnaissance: Identify Oracle E-Business Suite deployments running Oracle Contracts Integration versions 12.2.3–12.2.15 that are accessible over HTTP/HTTPS, using network scanning or OSINT techniques.
2. Craft malicious request: Construct a forged HTTP request targeting a state-changing endpoint within Oracle Contracts Integration's Internal Operations component (e.g., a form submission or API call that modifies contract data).
3. Deliver payload: Host the malicious request (e.g., as an auto-submitting HTML form or JavaScript snippet) on an attacker-controlled website or embed it in a phishing email/link.
4. Induce victim interaction: Trick an authenticated Oracle E-Business Suite user into visiting the attacker-controlled page while their session is active, causing the victim's browser to send the forged request with their valid session credentials.
5. Achieve unauthorized action: The application processes the forged request as legitimate, resulting in unauthorized data reads, inserts, updates, or deletes within Oracle Contracts Integration and potentially impacting other E-Business Suite components (Oracle CPU Jul 2026, Github Advisory).

• Network: Unexpected HTTP POST requests to Oracle Contracts Integration Internal Operations endpoints originating from unusual referrer domains or external IP addresses; cross-origin requests to E-Business Suite from non-corporate domains in web proxy logs.
• Logs: Oracle E-Business Suite access logs showing state-changing requests (POST/PUT/DELETE) to Contracts Integration endpoints with referrer headers pointing to external or unknown sites; requests lacking expected CSRF tokens or anti-forgery parameters.
• Application: Unexpected modifications, insertions, or deletions in Oracle Contracts Integration data records without corresponding authorized user activity; audit trail entries showing data changes attributed to legitimate user sessions at unusual times.

Oracle has released patches for CVE-2026-62487 as part of the July 2026 Critical Patch Update. Organizations running Oracle E-Business Suite versions 12.2.3 through 12.2.15 should apply the relevant patches immediately by following the Oracle E-Business Suite patch availability documentation. As a temporary measure, restricting network access to Oracle E-Business Suite to trusted internal networks and enforcing strict referrer/origin validation at the web application firewall layer may reduce risk, but these are not substitutes for patching. Oracle strongly recommends applying Critical Patch Update patches as soon as possible (Oracle CPU Jul 2026).