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CVE-2026-66779 is a cross-site scripting vulnerability in SAP NetWeaver Application Server ABAP. An authenticated attacker can craft a malicious link containing injected input and make that link accessible to other users. When an authenticated victim opens the link, the application reflects the attacker-controlled input into the client-side DOM during page rendering, causing malicious script or active content to execute in the victim’s browser context. The issue is consistent with reflected, DOM-processed XSS in which untrusted input is insufficiently neutralized before being incorporated into browser-executed content.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Cross-site scripting vulnerability in SAP NetWeaver Application Server ABAP.
A cross-site scripting vulnerability in SAP NetWeaver Application Server ABAP.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.