{"id":"CVE-2021-30209","aliases":["EUVD-2021-17141","GHSA-53fv-r9r8-jc5p"],"status":"published","title":"Textpattern V4.8.4 contains an arbitrary file upload vulnerability where a plug-in can be loaded...","description":"Textpattern V4.8.4 contains an arbitrary file upload vulnerability where a plug-in can be loaded in the background without any security verification, which may lead to obtaining system permissions.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00755,"percentile":0.5556,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2021-04-15T13:14:47Z","modified":"2026-10-20T10:54:39Z","products":[{"vendor":"textpattern","product":"textpattern"}],"references":[{"url":"https://github.com/textpattern/textpattern/issues/1655","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-30209"},{"url":"https://github.com/advisories/GHSA-53fv-r9r8-jc5p"}],"sources":{"cve":[{"id":"CVE-2021-30209","description":"Textpattern V4.8.4 contains an arbitrary file upload vulnerability where a plug-in can be loaded in the background without any security verification, which may lead to obtaining system permissions.","status":"published","published":"2021-04-15T13:14:47Z","modified":"2024-08-03T22:24:59.643Z","updated_at":"2026-11-02T14:33:02.20241Z"}],"euvd":[{"id":"EUVD-2021-17141","description":"Textpattern V4.8.4 contains an arbitrary file upload vulnerability where a plug-in can be loaded in the background without any security verification, which may lead to obtaining system permissions.","status":"published","published":"2021-04-15T13:14:47Z","modified":"2024-08-03T22:24:59Z","updated_at":"2026-11-03T03:24:42.963555Z"}],"ghsa":[{"id":"GHSA-53fv-r9r8-jc5p","title":"Textpattern V4.8.4 contains an arbitrary file upload vulnerability where a plug-in can be loaded...","description":"Textpattern V4.8.4 contains an arbitrary file upload vulnerability where a plug-in can be loaded in the background without any security verification, which may lead to obtaining system permissions.","status":"published","published":"2022-05-24T17:47:43Z","modified":"2023-01-29T05:06:25Z","cwes":["CWE-434"],"updated_at":"2026-11-02T14:46:01.014857Z"}],"nvd":[{"id":"CVE-2021-30209","description":"Textpattern V4.8.4 contains an arbitrary file upload vulnerability where a plug-in can be loaded in the background without any security verification, which may lead to obtaining system permissions.","status":"published","published":"2021-04-15T14:15:17.217Z","modified":"2026-06-17T03:49:52.253Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:06:52.03307Z"}],"osv":[{"id":"CVE-2021-30209","description":"Textpattern V4.8.4 contains an arbitrary file upload vulnerability where a plug-in can be loaded in the background without any security verification, which may lead to obtaining system permissions.","status":"published","published":"2021-04-15T14:15:17.217Z","modified":"2026-10-20T10:54:39.418198463Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:19.483607Z"}]}}