{"id":"CVE-2021-26473","aliases":["EUVD-2021-13278","GHSA-8x7w-j66g-cfqw"],"status":"published","title":"Unauthenticated arbitrary file upload and command execution in Vembu products","description":"In VembuBDR before 4.2.0.1 and VembuOffsiteDR before 4.2.0.1 the http API located at /sgwebservice_o.php action logFilePath allows an attacker to write arbitrary files in the context of the web server process. These files can then be executed remotely by calling the file via the web server.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01756,"percentile":0.78264,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2021-06-08T18:38:48Z","modified":"2026-06-17T03:43:26Z","products":[{"vendor":"vembu","product":"bdr_suite"},{"vendor":"vembu","product":"offsite_dr"}],"references":[{"url":"https://csirt.divd.nl/cases/DIVD-2020-00011/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://csirt.divd.nl/2021/05/11/Vembu-zero-days/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://www.wbsec.nl/vembu","tags":["x_refsource_CONFIRM","x_transferred","Broken Link","Third Party Advisory"]},{"url":"https://csirt.divd.nl/cves/CVE-2021-26473/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26473"},{"url":"https://www.divd.nl/"},{"url":"https://github.com/advisories/GHSA-8x7w-j66g-cfqw"}],"sources":{"cve":[{"id":"CVE-2021-26473","title":"Unauthenticated arbitrary file upload and command execution in Vembu products","description":"In VembuBDR before 4.2.0.1 and VembuOffsiteDR before 4.2.0.1 the http API located at /sgwebservice_o.php action logFilePath allows an attacker to write arbitrary files in the context of the web server process. These files can then be executed remotely by calling the file via the web server.","status":"published","published":"2021-06-08T18:38:48.809Z","modified":"2024-09-16T22:31:08.161Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13278","description":"In VembuBDR before 4.2.0.1 and VembuOffsiteDR before 4.2.0.1 the http API located at /sgwebservice_o.php action logFilePath allows an attacker to write arbitrary files in the context of the web server process. These files can then be executed remotely by calling the file via the web server.","status":"published","published":"2021-06-08T18:38:48Z","modified":"2024-09-16T22:31:08Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:55:02.001238Z"}],"ghsa":[{"id":"GHSA-8x7w-j66g-cfqw","title":"Vembu BDR Suite before 4.2.0 allows Unauthenticated file write via a GET request that specifies a...","description":"Vembu BDR Suite before 4.2.0 allows Unauthenticated file write via a GET request that specifies a file's name and content.","status":"published","published":"2022-05-24T19:04:18Z","modified":"2023-01-29T05:06:54Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:46:07.317218Z"}],"nvd":[{"id":"CVE-2021-26473","description":"In VembuBDR before 4.2.0.1 and VembuOffsiteDR before 4.2.0.1 the http API located at /sgwebservice_o.php action logFilePath allows an attacker to write arbitrary files in the context of the web server process. These files can then be executed remotely by calling the file via the web server.","status":"published","published":"2021-06-08T19:15:08.29Z","modified":"2026-06-17T03:43:26.19Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:06:54.439974Z"}]}}