{"id":"CVE-2021-34559","aliases":["EUVD-2021-21209","GHSA-fwcq-rwgm-5rc2"],"status":"published","title":"A vulnerability in WirelessHART-Gateway \u003c= 3.0.8 may allow remote attackers to rewrite links and URLs in cached pages to arbitrary strings","description":"In PEPPERL+FUCHS WirelessHART-Gateway \u003c= 3.0.8 a vulnerability may allow remote attackers to rewrite links and URLs in cached pages to arbitrary strings.","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":0.00768,"percentile":0.55887,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-444"],"published":"2021-08-31T10:32:54Z","modified":"2026-06-17T03:56:07Z","products":[{"vendor":"pepperl-fuchs","product":"wha-gw-f2d2-0-as-z2-eth.eip_firmware"},{"vendor":"pepperl-fuchs","product":"wha-gw-f2d2-0-as-z2-eth_firmware"},{"vendor":"phoenix contact","product":"wha-gw-f2d2-0-as- z2-eth"},{"vendor":"phoenix contact","product":"wha-gw-f2d2-0-as- z2-eth.eip"}],"references":[{"url":"https://cert.vde.com/en-us/advisories/vde-2021-027","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34559"},{"url":"https://github.com/advisories/GHSA-fwcq-rwgm-5rc2"}],"sources":{"cve":[{"id":"CVE-2021-34559","title":"A vulnerability in WirelessHART-Gateway \u003c= 3.0.8 may allow remote attackers to rewrite links and URLs in cached pages to arbitrary strings","description":"In PEPPERL+FUCHS WirelessHART-Gateway \u003c= 3.0.8 a vulnerability may allow remote attackers to rewrite links and URLs in cached pages to arbitrary strings.","status":"published","published":"2021-08-31T10:32:54.004Z","modified":"2024-09-16T17:33:00.268Z","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-444"],"updated_at":"2026-11-02T14:33:11.59359Z"}],"euvd":[{"id":"EUVD-2021-21209","description":"In PEPPERL+FUCHS WirelessHART-Gateway \u003c= 3.0.8 a vulnerability may allow remote attackers to rewrite links and URLs in cached pages to arbitrary strings.","status":"published","published":"2021-08-31T10:32:54Z","modified":"2024-09-16T17:33:00Z","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":"2026-11-03T00:55:41.00036Z"}],"ghsa":[{"id":"GHSA-fwcq-rwgm-5rc2","title":"In PEPPERL+FUCHS WirelessHART-Gateway \u003c= 3.0.8 a vulnerability may allow remote attackers to...","description":"In PEPPERL+FUCHS WirelessHART-Gateway \u003c= 3.0.8 a vulnerability may allow remote attackers to rewrite links and URLs in cached pages to arbitrary strings.","status":"published","published":"2022-05-24T19:12:38Z","modified":"2023-01-28T05:08:35Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-444"],"updated_at":"2026-11-02T14:44:37.39101Z"}],"nvd":[{"id":"CVE-2021-34559","description":"In PEPPERL+FUCHS WirelessHART-Gateway \u003c= 3.0.8 a vulnerability may allow remote attackers to rewrite links and URLs in cached pages to arbitrary strings.","status":"published","published":"2021-08-31T11:15:07.347Z","modified":"2026-06-17T03:56:07.437Z","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":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-444"],"updated_at":"2026-11-02T14:06:57.67549Z"}]}}