Skip to content
skopnix
Early access
← archivevulnerability · 24 Sep 2026 · 14:57 UTC

GHSA-6rf4-v2fh-m6p4: SunEditor: Critical XSS vulnerability - sanitizer bypass

VULNCVE-2026-59167source · GTH
HIGHCritical vulnerability — CVSS 10
What to do
  • Critical severity — schedule an urgent patch.

last 60 dispatches · spectrum

## Summary SUNEDITOR `v2.47.10` appears to allow JavaScript execution through crafted namespaced HTML elements. The sanitization logic does not fully remove executable event-handler attributes from certain custom/namespaced tags. As a result, an attacker may be able to inject HTML content that executes JavaScript when the rendered element is interacted with. …

CVE · detail
grounded ✓primary source ↗
Early access

Get the next one first.

Early access opens the actor API and MCP server first, plus alerts when an adversary you follow lands on the wire. One email when it's ready. Nothing else, ever.

bot-protected