{"id":"CVE-2021-35300","aliases":["EUVD-2021-21943","GHSA-r2cr-p267-3cp7"],"status":"published","title":"Text injection/Content Spoofing in 404 page in Zammad 1.0.x up to 4.0.0 could allow remote...","description":"Text injection/Content Spoofing in 404 page in Zammad 1.0.x up to 4.0.0 could allow remote attackers to manipulate users into visiting the attackers' page.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00887,"percentile":0.59602,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1021"],"published":"2021-06-28T19:06:44Z","modified":"2026-10-24T10:30:26Z","products":[{"vendor":"zammad","product":"zammad"}],"references":[{"url":"https://zammad.com/en/advisories/zaa-2021-07","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-35300"},{"url":"https://github.com/advisories/GHSA-r2cr-p267-3cp7"}],"sources":{"cve":[{"id":"CVE-2021-35300","description":"Text injection/Content Spoofing in 404 page in Zammad 1.0.x up to 4.0.0 could allow remote attackers to manipulate users into visiting the attackers' page.","status":"published","published":"2021-06-28T19:06:44Z","modified":"2024-08-04T00:33:51.341Z","updated_at":"2026-11-02T14:33:09.864034Z"}],"euvd":[{"id":"EUVD-2021-21943","description":"Text injection/Content Spoofing in 404 page in Zammad 1.0.x up to 4.0.0 could allow remote attackers to manipulate users into visiting the attackers' page.","status":"published","published":"2021-06-28T19:06:44Z","modified":"2024-08-04T00:33:51Z","updated_at":"2026-11-03T03:24:30.441845Z"}],"ghsa":[{"id":"GHSA-r2cr-p267-3cp7","title":"Text injection/Content Spoofing in 404 page in Zammad 1.0.x up to 4.0.0 could allow remote...","description":"Text injection/Content Spoofing in 404 page in Zammad 1.0.x up to 4.0.0 could allow remote attackers to manipulate users into visiting the attackers' page.","status":"published","published":"2022-05-24T19:06:21Z","modified":"2023-01-30T05:00:32Z","cwes":["CWE-1021"],"updated_at":"2026-11-02T14:46:13.539888Z"}],"nvd":[{"id":"CVE-2021-35300","description":"Text injection/Content Spoofing in 404 page in Zammad 1.0.x up to 4.0.0 could allow remote attackers to manipulate users into visiting the attackers' page.","status":"published","published":"2021-06-28T20:15:08.06Z","modified":"2026-06-17T03:57:25.307Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-1021"],"updated_at":"2026-11-02T14:06:55.259633Z"}],"osv":[{"id":"CVE-2021-35300","description":"Text injection/Content Spoofing in 404 page in Zammad 1.0.x up to 4.0.0 could allow remote attackers to manipulate users into visiting the attackers' page.","status":"published","published":"2021-06-28T20:15:08.06Z","modified":"2026-10-24T10:30:26.06990422Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:20.13324Z"}]}}