Vulnerability · Published Jul 23, 2026 · Assigned by ProgressSoftware
CVE-2026-15966Improper CORS handling in MOVEit Transfer
High 7.5
In plain English
A high-severity security flaw in MOVEit Transfer from Progress. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 68.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Progress | MOVEit Transfer | 0 – before 2025.1.52026.0.0 – before 2026.0.3 |
Weakness: CWE-942 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H