Quick answers
- Is CVE-2026-66779 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-66779 being exploited in the wild.
- How severe is CVE-2026-66779?
- Medium severity, with a CVSS score of 6.3, published 11 August 2026.
- Which products and versions are affected?
- SAP NetWeaver Application Server ABAP <UNKNOWN>.
- Is there a fix for CVE-2026-66779?
- 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-2026-66779 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-66779?
- Check whether you run SAP NetWeaver Application Server ABAP at an affected version. 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
This is a reflected cross-site scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP. An authenticated attacker can craft a malicious link containing JavaScript or other executable code; when an authenticated victim visits the link, the input is processed and reflected in the DOM without proper sanitization, causing the injected script to execute in the victim's browser context. The attack requires both the attacker and victim to be authenticated users. Successful exploitation could result in session hijacking, credential theft, or other client-side attacks affecting confidentiality and integrity. A patch is available via SAP Security Note 3721424 on the SAP Security Patch Day (August 11, 2026).
Affected products
- SAP NetWeaver Application Server ABAP <UNKNOWN>
Timeline
- 2026-08-11: disclosed