{"id":"CVE-2021-20749","aliases":["EUVD-2021-8163","GHSA-2xw3-pxr3-cr4c"],"status":"published","title":"Cross-site scripting vulnerability in Fudousan plugin ver5.7.0 and earlier, Fudousan Plugin Pro...","description":"Cross-site scripting vulnerability in Fudousan plugin ver5.7.0 and earlier, Fudousan Plugin Pro Single-User Type ver5.7.0 and earlier, and Fudousan Plugin Pro Multi-User Type ver5.7.0 and earlier allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00989,"percentile":0.62788,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-06-28T00:50:37Z","modified":"2026-06-17T03:34:22Z","products":[{"vendor":"nendeb","product":"'fudousan plugin' series"},{"vendor":"nendeb","product":"fudousan_plugin"},{"vendor":"nendeb","product":"fudousan_plugin_pro_multi-user"},{"vendor":"nendeb","product":"fudousan_plugin_pro_single-user"}],"references":[{"url":"https://nendeb.jp/fudou","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory"]},{"url":"https://www.nendeb-biz.jp/2021-0617-1200/","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://jvn.jp/en/jp/JVN93799513/index.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20749"},{"url":"https://github.com/advisories/GHSA-2xw3-pxr3-cr4c"}],"sources":{"cve":[{"id":"CVE-2021-20749","description":"Cross-site scripting vulnerability in Fudousan plugin ver5.7.0 and earlier, Fudousan Plugin Pro Single-User Type ver5.7.0 and earlier, and Fudousan Plugin Pro Multi-User Type ver5.7.0 and earlier allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.","status":"published","published":"2021-06-28T00:50:37Z","modified":"2024-08-03T17:53:22.045Z","updated_at":"2026-11-02T14:32:55.905855Z"}],"euvd":[{"id":"EUVD-2021-8163","description":"Cross-site scripting vulnerability in Fudousan plugin ver5.7.0 and earlier, Fudousan Plugin Pro Single-User Type ver5.7.0 and earlier, and Fudousan Plugin Pro Multi-User Type ver5.7.0 and earlier allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.","status":"published","published":"2021-06-28T00:50:37Z","modified":"2024-08-03T17:53:22Z","updated_at":"2026-11-03T03:25:08.33351Z"}],"ghsa":[{"id":"GHSA-2xw3-pxr3-cr4c","title":"Cross-site scripting vulnerability in Fudousan plugin ver5.7.0 and earlier, Fudousan Plugin Pro...","description":"Cross-site scripting vulnerability in Fudousan plugin ver5.7.0 and earlier, Fudousan Plugin Pro Single-User Type ver5.7.0 and earlier, and Fudousan Plugin Pro Multi-User Type ver5.7.0 and earlier allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.","status":"published","published":"2022-05-24T19:06:27Z","modified":"2023-01-30T05:00:34Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:13.539888Z"}],"nvd":[{"id":"CVE-2021-20749","description":"Cross-site scripting vulnerability in Fudousan plugin ver5.7.0 and earlier, Fudousan Plugin Pro Single-User Type ver5.7.0 and earlier, and Fudousan Plugin Pro Multi-User Type ver5.7.0 and earlier allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.","status":"published","published":"2021-06-28T01:15:07.537Z","modified":"2026-06-17T03:34:22.007Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:55.259633Z"}]}}