{"id":"CVE-2026-3303","aliases":["EUVD-2026-104532","GHSA-m52p-rqhq-p69f"],"status":"published","title":"IBM Concert Software Permissive Cross-domain Security Policy","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.","severity":{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00222,"percentile":0.12795,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-942"],"published":"2026-10-19T17:17:45Z","modified":"2026-11-03T15:53:40Z","products":[{"vendor":"ibm","product":"concert"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7292374","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3303"},{"url":"https://github.com/advisories/GHSA-m52p-rqhq-p69f"}],"sources":{"cve":[{"id":"CVE-2026-3303","title":"IBM Concert Software Permissive Cross-domain Security Policy","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.","status":"published","published":"2026-10-19T17:17:45.343Z","modified":"2026-10-20T16:10:39.862Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-942"],"updated_at":"2026-11-02T13:48:58.05327Z"}],"euvd":[{"id":"EUVD-2026-104532","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.","status":"published","published":"2026-10-19T17:17:45Z","modified":"2026-10-20T16:10:39Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-02T16:59:43.600473Z"}],"ghsa":[{"id":"GHSA-m52p-rqhq-p69f","title":"IBM Concert 1.0 through 3.0.0 uses cross-origin resource sharing (CORS) which could allow an...","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.","status":"published","published":"2026-10-19T18:32:17Z","modified":"2026-10-19T18:32:26Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-942"],"updated_at":"2026-11-02T15:13:58.199856Z"}],"nvd":[{"id":"CVE-2026-3303","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.","status":"published","published":"2026-10-19T18:17:07.387Z","modified":"2026-11-03T15:53:40.407Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"secondary"}],"cwes":["CWE-942"],"updated_at":"2026-11-03T18:16:45.277519Z"}]}}