{"id":"CVE-2021-34257","aliases":["EUVD-2022-1839","GHSA-vhgr-gfx3-fg37"],"status":"published","title":"Unrestricted Upload of File with Dangerous Type in WPanel 4","description":"Multiple Remote Code Execution (RCE) vulnerabilities exist in WPanel 4 4.3.1 and below via a malicious PHP file upload to (1) Dashboard's Avatar image, (2) Posts Folder image, (3) Pages Folder image and (4) Gallery Folder image.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01822,"percentile":0.79074,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2022-03-31T15:57:38Z","modified":"2026-10-24T10:30:33Z","affected":[{"source":"ghsa","ecosystem":"Packagist","package":"wpanel/wpanel4-cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.3.1"}]}]},{"source":"osv","ecosystem":"Packagist","package":"wpanel/wpanel4-cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.3.1"}]}],"versions":["2.0.0","2.0.1","2.2.0","3.0.0","3.0.0-beta","3.0.1","3.0.2","3.1.0","3.2.2","4.0.0","4.2.2","4.3.0","4.3.1","v2.0.0-beta","v3.1.1","v3.1.2","v3.2.0","v3.2.1","v4.1.0","v4.2.0","v4.2.1"]}],"products":[{"vendor":"wpanel_cms_project","product":"wpanel_cms"}],"references":[{"url":"https://latestpcsolution.wordpress.com/2021/06/05/wpanel4-cms-authenticated-rce/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://github.com/Sentinal920/WPanel4-Authenticated-RCE","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34257","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-vhgr-gfx3-fg37"},{"url":"https://github.com/wpanel/wpanel4-cms","tags":["package"]},{"url":"https://latestpcsolution.wordpress.com/2021/06/05/wpanel4-cms-authenticated-rce","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2021-34257","description":"Multiple Remote Code Execution (RCE) vulnerabilities exist in WPanel 4 4.3.1 and below via a malicious PHP file upload to (1) Dashboard's Avatar image, (2) Posts Folder image, (3) Pages Folder image and (4) Gallery Folder image.","status":"published","published":"2022-03-31T15:57:38Z","modified":"2024-08-04T00:05:52.52Z","updated_at":"2026-11-02T14:33:11.244759Z"}],"euvd":[{"id":"EUVD-2022-1839","description":"Multiple Remote Code Execution (RCE) vulnerabilities exist in WPanel 4 4.3.1 and below via a malicious PHP file upload to (1) Dashboard's Avatar image, (2) Posts Folder image, (3) Pages Folder image and (4) Gallery Folder image.","status":"published","published":"2022-03-31T15:57:38Z","modified":"2024-08-04T00:05:52Z","updated_at":"2026-11-03T03:24:32.880562Z"}],"ghsa":[{"id":"GHSA-vhgr-gfx3-fg37","title":"Unrestricted Upload of File with Dangerous Type in WPanel 4","description":"Multiple Remote Code Execution (RCE) vulnerabilities exist in WPanel 4 4.3.1 and below via a malicious PHP file upload to (1) Dashboard's Avatar image, (2) Posts Folder image, (3) Pages Folder image and (4) Gallery Folder image.","status":"published","published":"2022-04-01T00:00:41Z","modified":"2023-01-27T05:01:19Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:36:16.28305Z"}],"nvd":[{"id":"CVE-2021-34257","description":"Multiple Remote Code Execution (RCE) vulnerabilities exist in WPanel 4 4.3.1 and below via a malicious PHP file upload to (1) Dashboard's Avatar image, (2) Posts Folder image, (3) Pages Folder image and (4) Gallery Folder image.","status":"published","published":"2022-03-31T16:15:07.513Z","modified":"2026-06-17T03:55:34.903Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:07:05.581807Z"}],"osv":[{"id":"CVE-2021-34257","description":"Multiple Remote Code Execution (RCE) vulnerabilities exist in WPanel 4 4.3.1 and below via a malicious PHP file upload to (1) Dashboard's Avatar image, (2) Posts Folder image, (3) Pages Folder image and (4) Gallery Folder image.","status":"published","published":"2022-03-31T16:15:07.513Z","modified":"2026-10-24T10:30:33.556935975Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:20.13324Z"},{"id":"GHSA-vhgr-gfx3-fg37","title":"Unrestricted Upload of File with Dangerous Type in WPanel 4","description":"Multiple Remote Code Execution (RCE) vulnerabilities exist in WPanel 4 4.3.1 and below via a malicious PHP file upload to (1) Dashboard's Avatar image, (2) Posts Folder image, (3) Pages Folder image and (4) Gallery Folder image.","status":"published","published":"2022-04-01T00:00:41Z","modified":"2024-02-20T05:34:08.434267Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:46:57.348035Z"}]}}