One unauthenticated POST to xmlrpc.php can take down a PHP worker on a stock WordPress install, and there is nothing unusual about the request that does it. The attacker sends a pingback whose source URL points at a server they own. WordPress goes and fetches that URL, the server answers with a Brotli-compressed body, and libcurl unpacks it before... Weiterlesen: WordPress doesn’t ship Brotli. It’s still exposed to CVE-2026-111497
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WordPress doesn’t ship Brotli. It’s still exposed to CVE-2026-111497
One unauthenticated POST to xmlrpc.php can take down a PHP worker on a stock WordPress install, and there is nothing unusual about the request that does it.…
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BSI-Warnung (Deutschland)CVE-2026-111497
Node.js: Mehrere Schwachstellen mittel21.10.2026CISA-SSVC-Triage (vulnrichment)CVE-2026-111497
Exploitation: active (Aktiv ausgenutzt)Automatable: no (Nicht automatisierbar)Technical Impact: total (Vollständig)
Quelle: CISA-ADP vulnrichment · Stand 2026-10-23T00:00:00+00:00 · CISA Coordinator
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