CVE-2025-42948 is a Cross-Site Scripting (XSS) vulnerability identified in the SAP NetWeaver ABAP Platform, specifically affecting multiple versions including S4CRM (100, 200, 204, 205, 206), S4CEXT (107, 108, 109), and BBPCRM (713, 714). This vulnerability arises from improper neutralization of input during web page generation (CWE-79), allowing an unauthenticated attacker to craft a malicious URL that, when accessed by an authenticated user, injects malicious scripts into the web page content. The vulnerability exploits the fact that the platform processes attacker-controlled input without adequate sanitization or encoding, resulting in execution of malicious scripts in the context of the victim's browser session. The attacker can leverage this to access or modify information accessible within the victim's browser scope, potentially leading to session hijacking, data theft, or unauthorized actions performed on behalf of the user. The CVSS v3.1 base score is 6.1, indicating a medium severity level, with an attack vector of network (remote), low attack complexity, no privileges required, but requiring user interaction (clicking the malicious link). The scope is changed, meaning the vulnerability affects resources beyond the initially vulnerable component. No known exploits are reported in the wild yet, and no official patches or mitigation links are provided at this time. This vulnerability is significant because SAP NetWeaver ABAP is widely used in enterprise environments for critical business applications, and exploitation could compromise sensitive business data or disrupt operations.

For European organizations, the impact of CVE-2025-42948 could be substantial due to the widespread deployment of SAP NetWeaver ABAP in various industries such as manufacturing, finance, logistics, and public sector. Successful exploitation could lead to unauthorized access to sensitive business information, manipulation of data, or execution of unauthorized transactions within SAP applications. This could result in financial losses, regulatory non-compliance (e.g., GDPR violations due to data exposure), reputational damage, and operational disruptions. Since the vulnerability requires an authenticated user to click a malicious link, targeted phishing campaigns could be used to exploit this flaw, increasing the risk of insider threats or social engineering attacks. The changed scope indicates that the attacker could impact components beyond the immediate vulnerable module, potentially affecting integrated systems or services. Given the critical role SAP systems play in European enterprises, this vulnerability poses a medium risk that should be addressed promptly to prevent exploitation.

1. Implement strict input validation and output encoding on all user-controllable inputs within SAP NetWeaver ABAP applications to prevent injection of malicious scripts. 2. Educate users, especially those with access to SAP systems, about the risks of clicking unsolicited or suspicious links, emphasizing phishing awareness. 3. Monitor SAP system logs and web traffic for unusual activities or access patterns that could indicate exploitation attempts. 4. Apply SAP security notes and patches as soon as they become available from SAP, even if no official patch is currently released. 5. Use web application firewalls (WAF) with custom rules to detect and block common XSS payloads targeting SAP web interfaces. 6. Restrict access to SAP web interfaces to trusted networks or VPNs to reduce exposure to unauthenticated attackers. 7. Conduct regular security assessments and penetration testing focused on SAP web applications to identify and remediate similar vulnerabilities proactively. 8. Implement Content Security Policy (CSP) headers to limit the execution of unauthorized scripts in the browser context.