{"id":"CVE-2026-3891","aliases":["EUVD-2026-11760","GHSA-fpj4-w3j6-3v3w"],"status":"published","title":"Pix for WooCommerce \u003c= 1.5.0 - Unauthenticated Arbitrary File Upload","description":"The Pix for WooCommerce plugin for WordPress is vulnerable to arbitrary file uploads due to missing capability check and missing file type validation in the 'lkn_pix_for_woocommerce_c6_save_settings' function in all versions up to, and including, 1.5.0. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","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":"2026-11-09","score":0.34325,"percentile":0.98419,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-434"],"published":"2026-03-13T07:23:37Z","modified":"2026-06-17T10:44:23Z","exploits":[{"source":"exploitdb","id":"EDB-52642","title":"WooCommerce 1.5.0 - Unauthenticated Arbitrary File Upload","type":"webapps","platform":"multiple","date":"2026-08-17","url":"https://www.exploit-db.com/exploits/52642"},{"source":"metasploit","id":"exploit/multi/http/wp_plugin_pix_unauth_rce_cve_2026_3891","title":"WordPress Unauthenticated RCE via Pix for WooCommerce plugin","type":"exploit","platform":"PHP","date":"2026-03-12","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/multi/http/wp_plugin_pix_unauth_rce_cve_2026_3891"},{"source":"nuclei","id":"CVE-2026-3891","title":"Pix for WooCommerce \u003c= 1.5.0 - Unauthenticated Arbitrary File Upload","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-3891.yaml"},{"source":"pocgithub","id":"AnggaTechI/Mass-Scanner-CVE-2026-3891","title":"AnggaTechI/Mass-Scanner-CVE-2026-3891","date":"2026-04-16","url":"https://github.com/AnggaTechI/Mass-Scanner-CVE-2026-3891"},{"source":"pocgithub","id":"Ch4120N/CVE-2026-3891","title":"Ch4120N/CVE-2026-3891","date":"2026-08-03","url":"https://github.com/Ch4120N/CVE-2026-3891"},{"source":"pocgithub","id":"Nxploited/CVE-2026-3891","title":"Nxploited/CVE-2026-3891","date":"2026-03-27","url":"https://github.com/Nxploited/CVE-2026-3891"},{"source":"pocgithub","id":"VeronnX666/CVE-2026-3891","title":"VeronnX666/CVE-2026-3891","date":"2026-07-19","url":"https://github.com/VeronnX666/CVE-2026-3891"},{"source":"pocgithub","id":"joshuavanderpoll/CVE-2026-3891","title":"joshuavanderpoll/CVE-2026-3891","date":"2026-03-13","url":"https://github.com/joshuavanderpoll/CVE-2026-3891"},{"source":"pocgithub","id":"katranSefa/CVE-2026-3891","title":"katranSefa/CVE-2026-3891","date":"2026-09-05","url":"https://github.com/katranSefa/CVE-2026-3891"},{"source":"pocgithub","id":"m4sh-wacker/CVE-2026-3891-Pix-for-WooCommerce-Plugin-Exploit","title":"m4sh-wacker/CVE-2026-3891-Pix-for-WooCommerce-Plugin-Exploit","date":"2026-07-15","url":"https://github.com/m4sh-wacker/CVE-2026-3891-Pix-for-WooCommerce-Plugin-Exploit"},{"source":"pocgithub","id":"shinthink/CVE-2026-3891","title":"shinthink/CVE-2026-3891","date":"2026-07-15","url":"https://github.com/shinthink/CVE-2026-3891"},{"source":"pocgithub","id":"willygailo/CVE-2026-3891-Linux","title":"willygailo/CVE-2026-3891-Linux","date":"2026-05-31","url":"https://github.com/willygailo/CVE-2026-3891-Linux"}],"products":[{"vendor":"linknacional","product":"pix for woocommerce"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/20188fd3-c330-4c76-912b-72731e14c450?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/payment-gateway-pix-for-woocommerce/tags/1.4.0/Includes/LknPaymentPixForWoocommercePixC6.php#L694"},{"url":"https://plugins.trac.wordpress.org/changeset/3480639/payment-gateway-pix-for-woocommerce#file56"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3891"},{"url":"https://github.com/advisories/GHSA-fpj4-w3j6-3v3w"}],"sources":{"cve":[{"id":"CVE-2026-3891","title":"Pix for WooCommerce \u003c= 1.5.0 - Unauthenticated Arbitrary File Upload","description":"The Pix for WooCommerce plugin for WordPress is vulnerable to arbitrary file uploads due to missing capability check and missing file type validation in the 'lkn_pix_for_woocommerce_c6_save_settings' function in all versions up to, and including, 1.5.0. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","status":"published","published":"2026-03-13T07:23:37.971Z","modified":"2026-04-08T16:41:11.061Z","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"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T13:48:58.05327Z"}],"euvd":[{"id":"EUVD-2026-11760","description":"The Pix for WooCommerce plugin for WordPress is vulnerable to arbitrary file uploads due to missing capability check and missing file type validation in the 'lkn_pix_for_woocommerce_c6_save_settings' function in all versions up to, and including, 1.5.0. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","status":"published","published":"2026-03-13T07:23:37Z","modified":"2026-04-08T16:41:11Z","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":"2026-11-02T19:25:06.507675Z"}],"ghsa":[{"id":"GHSA-fpj4-w3j6-3v3w","title":"The Pix for WooCommerce plugin for WordPress is vulnerable to arbitrary file uploads due to...","description":"The Pix for WooCommerce plugin for WordPress is vulnerable to arbitrary file uploads due to missing capability check and missing file type validation in the 'lkn_pix_for_woocommerce_c6_save_settings' function in all versions up to, and including, 1.5.0. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","status":"published","published":"2026-03-13T21:31:51Z","modified":"2026-03-13T21:32:01Z","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":"2026-11-02T15:06:36.394237Z"}],"nvd":[{"id":"CVE-2026-3891","description":"The Pix for WooCommerce plugin for WordPress is vulnerable to arbitrary file uploads due to missing capability check and missing file type validation in the 'lkn_pix_for_woocommerce_c6_save_settings' function in all versions up to, and including, 1.5.0. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","status":"published","published":"2026-03-13T19:55:10.983Z","modified":"2026-06-17T10:44:23.283Z","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"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:12:09.358914Z"}]}}