# CVE-2026-109810: CSS Injection vulnerability in SAP NetWeaver Application Server Java (Web Dynpro Java)

Status: published. Published: 2026-11-10. Updated: 2026-11-10.

SAP NetWeaver Application Server Java (Web Dynpro Java) does not sufficiently validate certain request parameters used to resolve styling resources in the application. An unauthenticated attacker could craft a malicious link that, when clicked by an authenticated victim, causes the victim's browser to load attacker-controlled styling content within the trusted application context. Successful exploitation could allow the attacker to redress the trusted user interface for phishing purposes and exfiltrate limited web page content, resulting in a low impact on confidentiality and integrity. There is no impact on availability.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- SAP_SE / SAP NetWeaver Application Server Java (Web Dynpro Java): WD-RUNTIME 7.50 (affected). Source: CNA: sap

## Severity and prioritization

- CVSS 3.1: 6.1 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N; source: CNA: sap

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-79

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://me.sap.com/notes/3797108 (CNA: sap)

- https://url.sap/sapsecuritypatchday (CNA: sap)

## Provenance

- CNA: sap: https://www.cve.org/CVERecord?id=CVE-2026-109810; retrieved 2026-11-10; source updated 2026-11-10

Revision: 182477c5008d78792ec945dca1abf3780723a632bf97fccae596daa0089435ab

Canonical: https://y2.dev/cve/CVE-2026-109810

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