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SAP NetWeaver AS Java CVE-2026-44752

| EUVDEUVD-2026-43587 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-07-14 sap GHSA-q9j6-4pfx-9vfj
8.2
CVSS 3.1 · Vendor: sap
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Severity by source

Vendor (sap) PRIMARY
8.2 HIGH
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
vuln.today AI
8.2 HIGH

Network-reachable reflected XSS needing no auth (PR:N) but victim click (UI:R); script escapes into victim session (S:C) exposing session data (C:H) with limited integrity (I:L).

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N

Primary rating from Vendor (sap).

CVSS VectorVendor: sap

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None

Lifecycle Timeline

2
Analysis Generated
Jul 14, 2026 - 01:17 vuln.today
CVE Published
Jul 14, 2026 - 00:19 cve.org
HIGH 8.2

DescriptionCVE.org

SAP NetWeaver Application Server Java allows an unauthenticated attacker to inject malicious JavaScript through crafted URLs. When a victim accesses such a URL, the script executes in the user's browser, allowing the attacker to access sensitive session information and modify non-sensitive data displayed in the client�s browser. This results in a high impact on confidentiality, low impact on integrity with no impact on availability of the application.

AnalysisAI

Reflected cross-site scripting in SAP NetWeaver Application Server Java (specifically the Configuration Wizard component) lets an unauthenticated attacker embed malicious JavaScript in crafted URLs that executes in a victim's browser when the link is opened. Because the CVSS scope is changed (S:C) and confidentiality impact is high, a successful lure can expose sensitive session information and tamper with non-sensitive data rendered in the client. No public exploit identified at time of analysis, but the 8.2 CVSS and unauthenticated, network-reachable vector make it a meaningful phishing-driven risk for exposed SAP portals.

Technical ContextAI

The flaw is a classic CWE-79 (Improper Neutralization of Input During Web Page Generation) reflected XSS in the Java stack of SAP NetWeaver Application Server, a widely deployed enterprise application platform that hosts SAP portal, administration, and configuration services. The affected surface per the CPE (cpe:2.3:a:sap_se:sap_netweaver_application_server_java(configuration_wizard)) is the Configuration Wizard, a browser-based administrative setup tool. User-supplied parameters in a URL are reflected into the HTTP response without adequate output encoding, so the browser interprets attacker-controlled content as executable script in the security context of the SAP application origin. The CVSS scope change (S:C) reflects that the injected script executes in the victim's authenticated browser session, crossing the trust boundary from the vulnerable component to the user's authenticated context and its data.

RemediationAI

Apply the fix from SAP Security Note 3748227 (https://me.sap.com/notes/3748227), released as part of SAP Security Patch Day (https://url.sap/sapsecuritypatchday); the input does not specify an exact patched version, so confirm the precise SP/patch level directly in the SAP Note before deployment. Because this is the Configuration Wizard, a strong compensating control is to restrict or disable access to the Configuration Wizard endpoints in production - the wizard is a setup tool and is typically not needed during normal operation, so blocking it at the reverse proxy/Web Dispatcher or removing it from internet exposure has minimal operational side effects. Additional interim mitigations: place NetWeaver AS Java behind SAP Web Dispatcher or a WAF with rules to filter script-bearing URL parameters, restrict administrative interfaces to trusted management networks, and enforce browser-side protections (Content-Security-Policy, HttpOnly/Secure session cookies to limit session-token theft), noting that CSP and WAF filtering can break legitimate admin functionality and require testing before enforcement.

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CVE-2026-44752 vulnerability details – vuln.today

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