CVE-2026-66779

Medium

Description

Due to a Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP, an authenticated attacker could generate a malicious link and make it publicly accessible. If an authenticated victim accesses this link, the injected input is processed and reflected within the DOM on the client side during page rendering, resulting in the execution of malicious content in the victim's browser context. Successful exploitation could result in a high impact to the confidentiality and a low impact to the integrity of the system, while availability remains unaffected.

SeverityMedium
CVSS6.3
Exploit probability—
ProductSAP NetWeaver Application Server ABAP
PublishedAug 11, 2026
First seenAug 11, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
SAP_SE SAP NetWeaver Application Server ABAPSAP_UI 754, 755, 756, 757, 758, 816, EP-FLP 7.50, SAP_BASIS 731, AJAX-RUNTIME 7.50—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.