CVE-2026-3303
IBM Concert Software Permissive Cross-domain Security Policy
CVSS Score
3.7
EPSS Score
0.0%
EPSS Percentile
0th
IBM Concert 1.0 through 3.0.0 uses cross-origin resource sharing (CORS) which could allow an attacker to carry out privileged actions as the domain name is not being limited to only trusted domains.
| CWE | CWE-942 |
| Vendor | ibm |
| Product | concert |
| Published | Oct 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
IBM / Concert
1.0.0 ≤ 3.0.0