{"id":"CVE-2025-27909","aliases":["EUVD-2025-27737","GHSA-22cj-gf6g-gpgc"],"status":"published","title":"IBM Concert Software cross-origin resource sharing","description":"IBM Concert Software 1.0.0 through 1.1.0 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":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00233,"percentile":0.14307,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-697","CWE-942"],"published":"2025-08-18T14:00:31Z","modified":"2026-11-08T02:47:21Z","products":[{"vendor":"ibm","product":"concert"},{"vendor":"ibm","product":"concert software"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7242354","tags":["vendor-advisory","patch","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-27909"},{"url":"https://github.com/advisories/GHSA-22cj-gf6g-gpgc"}],"sources":{"cve":[{"id":"CVE-2025-27909","title":"IBM Concert Software cross-origin resource sharing","description":"IBM Concert Software 1.0.0 through 1.1.0 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":"2025-08-18T14:00:31.751Z","modified":"2025-08-18T14:12:36.834Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-942"],"updated_at":"2026-11-02T14:32:42.411662Z"}],"euvd":[{"id":"EUVD-2025-27737","description":"IBM Concert Software 1.0.0 through 1.1.0 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":"2025-08-18T14:00:31Z","modified":"2025-08-18T14:12:36Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:31:56.298799Z"}],"ghsa":[{"id":"GHSA-22cj-gf6g-gpgc","title":"IBM Concert Software 1.0.0 through 1.1.0 uses cross-origin resource sharing (CORS) which could...","description":"IBM Concert Software 1.0.0 through 1.1.0 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":"2025-08-18T15:30:32Z","modified":"2025-08-21T21:33:07Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-697","CWE-942"],"updated_at":"2026-11-02T15:03:22.719724Z"}],"nvd":[{"id":"CVE-2025-27909","description":"IBM Concert Software 1.0.0 through 1.1.0 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":"2025-08-18T14:15:28.55Z","modified":"2026-06-17T09:04:22.16Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-942","CWE-697"],"updated_at":"2026-11-02T14:11:24.730342Z"}],"osv":[{"id":"CVE-2025-27909","description":"IBM Concert Software 1.0.0 through 1.1.0 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":"2025-08-18T14:15:28.55Z","modified":"2026-11-08T02:47:21.829806305Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-08T02:57:30.447698Z"}]}}