{"id":"CVE-2020-21434","aliases":["EUVD-2020-14206","GHSA-6q4r-96qj-749p"],"status":"published","title":"Maccms 10 contains a cross-site scripting (XSS) vulnerability in the Editing function under the...","description":"Maccms 10 contains a cross-site scripting (XSS) vulnerability in the Editing function under the Member module. This vulnerability is exploited via a crafted payload in the nickname text field.","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":"2026-11-11","score":0.0052,"percentile":0.44613,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-10-04T20:20:15Z","modified":"2026-06-17T03:03:40Z","products":[{"vendor":"maccms","product":"maccms"}],"references":[{"url":"https://github.com/Ksharp12138/maccms_userinfo_xss/blob/master/maccms_xss.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-21434"},{"url":"https://github.com/advisories/GHSA-6q4r-96qj-749p"}],"sources":{"cve":[{"id":"CVE-2020-21434","description":"Maccms 10 contains a cross-site scripting (XSS) vulnerability in the Editing function under the Member module. This vulnerability is exploited via a crafted payload in the nickname text field.","status":"published","published":"2021-10-04T20:20:15Z","modified":"2024-08-04T14:30:32.007Z","updated_at":"2026-11-02T14:35:48.854892Z"}],"euvd":[{"id":"EUVD-2020-14206","description":"Maccms 10 contains a cross-site scripting (XSS) vulnerability in the Editing function under the Member module. This vulnerability is exploited via a crafted payload in the nickname text field.","status":"published","published":"2021-10-04T20:20:15Z","modified":"2024-08-04T14:30:32Z","updated_at":"2026-11-03T03:07:23.734565Z"}],"ghsa":[{"id":"GHSA-6q4r-96qj-749p","title":"Maccms 10 contains a cross-site scripting (XSS) vulnerability in the Editing function under the...","description":"Maccms 10 contains a cross-site scripting (XSS) vulnerability in the Editing function under the Member module. This vulnerability is exploited via a crafted payload in the nickname text field.","status":"published","published":"2022-05-24T19:16:24Z","modified":"2023-01-30T05:02:34Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:39.888016Z"}],"nvd":[{"id":"CVE-2020-21434","description":"Maccms 10 contains a cross-site scripting (XSS) vulnerability in the Editing function under the Member module. This vulnerability is exploited via a crafted payload in the nickname text field.","status":"published","published":"2021-10-04T21:15:12.303Z","modified":"2026-06-17T03:03:40.777Z","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":"2026-11-02T14:06:45.704484Z"}]}}