{"id":"CVE-2021-31521","aliases":["EUVD-2021-18421","GHSA-2fwg-qc8c-frhr"],"status":"published","title":"Trend Micro InterScan Web Security Virtual Appliance version 6.5 was found to have a reflected...","description":"Trend Micro InterScan Web Security Virtual Appliance version 6.5 was found to have a reflected cross-site scripting (XSS) vulnerability in the product's Captive Portal.","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":"2026-11-12","score":0.01398,"percentile":0.72834,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-06-17T11:42:50Z","modified":"2026-06-17T03:51:57Z","products":[{"vendor":"trend micro","product":"trend micro interscan web security virtual appliance"},{"vendor":"trend micro, inc.","product":"trend micro interscan web security virtual appliance"},{"vendor":"trendmicro","product":"interscan_web_security_virtual_appliance"}],"references":[{"url":"https://success.trendmicro.com/solution/000286452","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31521"},{"url":"https://github.com/advisories/GHSA-2fwg-qc8c-frhr"}],"sources":{"cve":[{"id":"CVE-2021-31521","description":"Trend Micro InterScan Web Security Virtual Appliance version 6.5 was found to have a reflected cross-site scripting (XSS) vulnerability in the product's Captive Portal.","status":"published","published":"2021-06-17T11:42:50Z","modified":"2024-08-03T23:03:33.221Z","updated_at":"2026-11-02T14:33:05.331617Z"}],"euvd":[{"id":"EUVD-2021-18421","description":"Trend Micro InterScan Web Security Virtual Appliance version 6.5 was found to have a reflected cross-site scripting (XSS) vulnerability in the product's Captive Portal.","status":"published","published":"2021-06-17T11:42:50Z","modified":"2024-08-03T23:03:33Z","updated_at":"2026-11-03T03:24:38.977347Z"}],"ghsa":[{"id":"GHSA-2fwg-qc8c-frhr","title":"Trend Micro InterScan Web Security Virtual Appliance version 6.5 was found to have a reflected...","description":"Trend Micro InterScan Web Security Virtual Appliance version 6.5 was found to have a reflected cross-site scripting (XSS) vulnerability in the product's Captive Portal.","status":"published","published":"2022-05-24T19:05:38Z","modified":"2023-01-29T05:06:35Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:03.455343Z"}],"nvd":[{"id":"CVE-2021-31521","description":"Trend Micro InterScan Web Security Virtual Appliance version 6.5 was found to have a reflected cross-site scripting (XSS) vulnerability in the product's Captive Portal.","status":"published","published":"2021-06-17T12:15:07.933Z","modified":"2026-06-17T03:51:57.237Z","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":"2026-11-02T14:06:54.892562Z"}]}}