CVE-2026-44759 in NetWeaver Enterprise Portal
Summary
by MITRE • 07/14/2026
SAP NetWeaver Enterprise Portal allows an unauthenticated attacker to inject malicious scripts into a URL parameter. The scripts are reflected in the server response and executed in a user's browser when the crafted URL is visited, leading to theft of session information, manipulation of portal content, or user redirection, resulting in a low impact on the application's confidentiality and integrity, with no impact on availability.
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Analysis
by VulDB Data Team • 07/14/2026
This vulnerability represents a classic cross-site scripting flaw that affects SAP NetWeaver Enterprise Portal implementations, specifically targeting the portal's handling of URL parameters without proper input validation or output encoding mechanisms. The security weakness enables unauthenticated attackers to inject malicious scripts into URL parameters that are subsequently reflected in server responses and executed within users' browsers. This type of vulnerability falls under CWE-79 which categorizes improper neutralization of input during web page generation, making it a prime target for various client-side attack vectors.
The technical execution of this vulnerability occurs when an attacker crafts a malicious URL containing script payloads that get processed by the portal's backend systems and returned in HTTP responses without adequate sanitization or encoding. When legitimate users navigate to these crafted URLs, their browsers execute the injected scripts within the context of the vulnerable portal application, creating a persistent threat vector that can be leveraged for session hijacking, credential theft, or content manipulation. The reflected nature of this vulnerability means that the malicious scripts are immediately executed upon user interaction rather than being stored on the server, making it particularly challenging to detect and prevent.
From an operational impact perspective, while this vulnerability is classified as low impact regarding confidentiality and integrity, it still poses significant risks to user security and application trust. Attackers can leverage this weakness to steal session cookies and authentication tokens, potentially gaining unauthorized access to user accounts and sensitive portal functionalities. The ability to manipulate portal content through script injection allows for defacement attacks or the injection of malicious content that can compromise user experience and data integrity. Additionally, attackers can redirect users to malicious domains, creating phishing opportunities or facilitating further exploitation attempts.
The mitigation strategies for this vulnerability should prioritize input validation and output encoding implementations across all portal components that process URL parameters. Organizations must implement comprehensive parameter sanitization mechanisms that properly encode or escape all user-supplied data before inclusion in web responses. Security controls should include implementing content security policies to restrict script execution, deploying web application firewalls with XSS detection capabilities, and ensuring proper input validation at multiple layers of the application stack. This vulnerability aligns with ATT&CK technique T1566 which covers social engineering attacks through malicious links, making it essential for organizations to conduct regular security assessments and user awareness training to prevent exploitation attempts.