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CVE record · CVE-2026-66779

Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP

CVSS 6.3 MediumEPSS 0.0035 · 28th percentile

Published by the CVE Program (CNA: sap) at 11 Aug 2026, 00:20 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
SAP_SE SAP NetWeaver Application Server ABAP
  • affected SAP_UI 754
  • affected 755
  • affected 756
  • affected 757
  • affected 758
  • affected 816
  • affected EP-FLP 7.50
  • affected SAP_BASIS 731
  • affected AJAX-RUNTIME 7.50
Other versions: unaffected
Identifiers
CVE-2026-66779
CNA
sap
Weakness (CWE)
CWE-79
Tags
Published
11 Aug 2026
Updated
11 Aug 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.3 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N CNA (sap)
  • CISA KEV Not listed.
  • EPSS 0.0035, the 28th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 11 Aug 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.