{"id":"CVE-2020-21524","aliases":["EUVD-2020-14292","GHSA-mr5m-8j6x-5qpr"],"status":"published","title":"There is a XML external entity (XXE) vulnerability in halo v1.1.3, The function of importing...","description":"There is a XML external entity (XXE) vulnerability in halo v1.1.3, The function of importing other blogs in the background(/api/admin/migrations/wordpress) needs to parse the xml file, but it is not used for security defense, This vulnerability can detect the intranet, read files, enable ddos attacks, etc. exp:https://github.com/halo-dev/halo/issues/423","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.0151,"percentile":0.74777,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-611"],"published":"2020-09-30T14:34:09Z","modified":"2026-06-17T03:03:44Z","products":[{"vendor":"halo","product":"halo"}],"references":[{"url":"https://github.com/halo-dev/halo/issues/423","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-21524"},{"url":"https://github.com/advisories/GHSA-mr5m-8j6x-5qpr"}],"sources":{"cve":[{"id":"CVE-2020-21524","description":"There is a XML external entity (XXE) vulnerability in halo v1.1.3, The function of importing other blogs in the background(/api/admin/migrations/wordpress) needs to parse the xml file, but it is not used for security defense, This vulnerability can detect the intranet, read files, enable ddos attacks, etc. exp:https://github.com/halo-dev/halo/issues/423","status":"published","published":"2020-09-30T14:34:09Z","modified":"2024-08-04T14:30:32.81Z","updated_at":"2026-11-02T14:35:48.854892Z"}],"euvd":[{"id":"EUVD-2020-14292","description":"There is a XML external entity (XXE) vulnerability in halo v1.1.3, The function of importing other blogs in the background(/api/admin/migrations/wordpress) needs to parse the xml file, but it is not used for security defense, This vulnerability can detect the intranet, read files, enable ddos attacks, etc. exp:https://github.com/halo-dev/halo/issues/423","status":"published","published":"2020-09-30T14:34:09Z","modified":"2024-08-04T14:30:32Z","updated_at":"2026-11-03T03:07:23.734565Z"}],"ghsa":[{"id":"GHSA-mr5m-8j6x-5qpr","title":"There is a XML external entity (XXE) vulnerability in halo v1.1.3, The function of importing...","description":"There is a XML external entity (XXE) vulnerability in halo v1.1.3, The function of importing other blogs in the background(/api/admin/migrations/wordpress) needs to parse the xml file, but it is not used for security defense, This vulnerability can detect the intranet, read files, enable ddos attacks, etc. exp:https://github.com/halo-dev/halo/issues/423","status":"published","published":"2022-05-24T17:29:49Z","modified":"2023-01-29T05:04:44Z","updated_at":"2026-11-02T14:45:37.465361Z"}],"nvd":[{"id":"CVE-2020-21524","description":"There is a XML external entity (XXE) vulnerability in halo v1.1.3, The function of importing other blogs in the background(/api/admin/migrations/wordpress) needs to parse the xml file, but it is not used for security defense, This vulnerability can detect the intranet, read files, enable ddos attacks, etc. exp:https://github.com/halo-dev/halo/issues/423","status":"published","published":"2020-09-30T18:15:24.023Z","modified":"2026-06-17T03:03:44.987Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T14:06:17.70091Z"}]}}