What’s Vulnerable › Vulnerabilities
CVE-2026-3303: IBM Concert Software Permissive Cross-domain Security Policy
- Severity: low (CVSS 3.7 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-19 · updated 2026-10-20
- Weakness: CWE-942
Description
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.
Affected products
- IBM Concert: from 1.0.0 through 3.0.0
References
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