Security advisory: Pre-authentication RCE in Wyn Enterprise 9.1.00145.0 (Mescius (GrapeCity))

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Metadaten

  • Original (extern): Link oeffnen
  • Veroeffentlicht: 2026-08-18 06:17 UTC
  • Importiert: 2026-08-18 07:41 UTC
  • Quelle-ID: full_disc
  • uid_hash: f21172899a82e4822a6b51190639b01ecad8cc9172919c6620d62cccad9f6d87

Inhalt

Posted by disclosure via Fulldisclosure on Aug 17 0day Rubbish Research Team is publicly disclosing a vulnerability in Wyn Enterprise 9.1.00145.0 (Mescius (GrapeCity)).

The research is published and a proof-of-concept is available.

Pre-authentication RCE (CVSS 9.8, pre-authentication)

Wyn Enterprise 9.1.00145.0 exposes an unauthenticated root RCE chain of three vulnerabilities: JWT signature validation

is skipped (parse-only ReadToken) with a hardcoded integration client secret, producing an...

No data

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