{"id":"CVE-2021-24253","aliases":["EUVD-2021-11167","GHSA-rrx2-h7gv-6jx5"],"status":"published","title":"Classyfrieds \u003c= 3.8 - Authenticated Arbitrary File Upload to RCE","description":"The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE.","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":"2026-11-10","score":0.01906,"percentile":0.79918,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2021-05-05T18:39:43Z","modified":"2026-06-17T03:39:42Z","products":[{"vendor":"classyfrieds_project","product":"classyfrieds"},{"vendor":"unknown","product":"classyfrieds"}],"references":[{"url":"https://wpscan.com/vulnerability/ee42c233-0ff6-4b27-a5ec-ad3246bef079","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/classyfrieds.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24253"},{"url":"https://github.com/advisories/GHSA-rrx2-h7gv-6jx5"}],"sources":{"cve":[{"id":"CVE-2021-24253","title":"Classyfrieds \u003c= 3.8 - Authenticated Arbitrary File Upload to RCE","description":"The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE.","status":"published","published":"2021-05-05T18:39:43Z","modified":"2024-08-03T19:28:22.247Z","cwes":["CWE-434"],"updated_at":"2026-11-02T14:33:04.679189Z"}],"euvd":[{"id":"EUVD-2021-11167","description":"The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE.","status":"published","published":"2021-05-05T18:39:43Z","modified":"2024-08-03T19:28:22Z","updated_at":"2026-11-03T03:24:58.504484Z"}],"ghsa":[{"id":"GHSA-rrx2-h7gv-6jx5","title":"The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an...","description":"The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE.","status":"published","published":"2022-05-24T19:01:31Z","modified":"2023-01-29T05:06:11Z","cwes":["CWE-434"],"updated_at":"2026-11-02T14:45:58.127346Z"}],"nvd":[{"id":"CVE-2021-24253","description":"The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE.","status":"published","published":"2021-05-06T13:15:11.797Z","modified":"2026-06-17T03:39:42.667Z","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":"2026-11-02T14:06:52.81233Z"}]}}