# CVE-2026-76976: SAP NetWeaver Application Server ABAP stored cross-site scripting in GUI for HTML

Source: https://junglewise.ai/threats/cve-2026-76976-applications-based-on-sap-gui-for-html-in-sap-netweaver  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-76976 · Severity: medium · CVSS 5.4 · Published 2026-10-13

SAP GUI for HTML is a web interface for SAP's enterprise resource planning system. An authenticated attacker can inject malicious scripts that execute when other users view the affected content, potentially allowing theft of sensitive business data or session hijacking. The vulnerability requires user interaction but could compromise multiple users in an organization.

Technologies: [SAP NetWeaver Application Server ABAP](https://junglewise.ai/threats/technologies/netweaver-application-server-abap). Vendors: [SAP](https://junglewise.ai/threats/vendors/sap).

## Quick answers

**Is CVE-2026-76976 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-76976 being exploited in the wild.

**How severe is CVE-2026-76976?** Medium severity, with a CVSS score of 5.4, published 13 October 2026.

**Which products and versions are affected?** SAP NetWeaver Application Server ABAP.

**Is there a fix for CVE-2026-76976?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-76976 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-76976?** Check whether you run SAP NetWeaver Application Server ABAP. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

Insufficient input sanitization in SAP GUI for HTML allows authenticated attackers to inject malicious JavaScript that persists and executes in victim browsers (stored XSS). The vulnerability requires an authenticated user and victim interaction with the injected content, but affects confidentiality and integrity through script execution in the victim's browser context. A fix is available via SAP Security Patch Day.

## Affected products

- SAP NetWeaver Application Server ABAP

## Timeline

- 2026-10-13: disclosed

## References

- [https://me.sap.com/notes/3671819](https://me.sap.com/notes/3671819)
- [https://url.sap/sapsecuritypatchday](https://url.sap/sapsecuritypatchday)

## Related threats

- [SAP Web Dispatcher and NetWeaver Application Server ABAP CSRF in administrative functionality](https://junglewise.ai/threats/cve-2026-89119-sap-web-dispatcher-and-sap-netweaver-application-server-abap)
- [SAP NetWeaver Application Server ABAP memory corruption denial of service](https://junglewise.ai/threats/cve-2026-76970-due-to-a-memory-corruption-vulnerability-in-application-server)
- [SAP NetWeaver Application Server ABAP authorization bypass](https://junglewise.ai/threats/cve-2026-76965-sap-netweaver-application-server-abap-and-abap-platform-does-not)
- [SAP NetWeaver Application Server ABAP memory corruption](https://junglewise.ai/threats/cve-2026-76964-sap-netweaver-application-server-abap-does-not-sufficiently)
- [SAP NetWeaver Application Server ABAP memory disclosure](https://junglewise.ai/threats/cve-2026-109796-sap-netweaver-application-server-abap-and-abap-platform-does-not)