CVE-2026-15966 — CVE-2026-15966 — Permissive cross-domain security policy with untrusted domains vulnerability in Progress MOVEit Transfer.

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Permissive cross-domain security policy with untrusted domains vulnerability in Progress MOVEit Transfer. This issue affects MOVEit Transfer: before 2025.1.5, from 2026.0.0 before 2026.0.3.