{"id":"CVE-2021-20783","aliases":["EUVD-2021-8195","GHSA-m9rh-6hgx-mg26"],"status":"published","title":"Cross-site request forgery (CSRF) vulnerability in Optical BB unit E-WMTA2.3 allows a remote...","description":"Cross-site request forgery (CSRF) vulnerability in Optical BB unit E-WMTA2.3 allows a remote attacker to hijack the authentication of administrators via a specially crafted page.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00551,"percentile":0.46519,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-352"],"published":"2021-07-28T00:45:24Z","modified":"2026-06-17T03:34:26Z","products":[{"vendor":"softbank","product":"optical bb unit e-wmta2.3"},{"vendor":"softbank","product":"optical_bb_unit_e-wmta_firmware"}],"references":[{"url":"https://jvn.jp/en/jp/JVN34364599/index.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20783"},{"url":"https://github.com/advisories/GHSA-m9rh-6hgx-mg26"}],"sources":{"cve":[{"id":"CVE-2021-20783","description":"Cross-site request forgery (CSRF) vulnerability in Optical BB unit E-WMTA2.3 allows a remote attacker to hijack the authentication of administrators via a specially crafted page.","status":"published","published":"2021-07-28T00:45:24Z","modified":"2024-08-03T17:53:22.63Z","updated_at":"2026-11-02T14:32:55.564736Z"}],"euvd":[{"id":"EUVD-2021-8195","description":"Cross-site request forgery (CSRF) vulnerability in Optical BB unit E-WMTA2.3 allows a remote attacker to hijack the authentication of administrators via a specially crafted page.","status":"published","published":"2021-07-28T00:45:24Z","modified":"2024-08-03T17:53:22Z","updated_at":"2026-11-03T03:25:07.874589Z"}],"ghsa":[{"id":"GHSA-m9rh-6hgx-mg26","title":"Cross-site request forgery (CSRF) vulnerability in Optical BB unit E-WMTA2.3 allows a remote...","description":"Cross-site request forgery (CSRF) vulnerability in Optical BB unit E-WMTA2.3 allows a remote attacker to hijack the authentication of administrators via a specially crafted page.","status":"published","published":"2022-05-24T19:09:24Z","modified":"2023-01-30T05:01:09Z","cwes":["CWE-352"],"updated_at":"2026-11-02T14:46:21.093669Z"}],"nvd":[{"id":"CVE-2021-20783","description":"Cross-site request forgery (CSRF) vulnerability in Optical BB unit E-WMTA2.3 allows a remote attacker to hijack the authentication of administrators via a specially crafted page.","status":"published","published":"2021-07-30T14:15:14.753Z","modified":"2026-06-17T03:34:26.76Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:06:56.185362Z"}]}}