{"id":"CVE-2026-6227","aliases":["EUVD-2026-22201","GHSA-6gj4-hcqg-pjc8"],"status":"published","title":"BackWPup \u003c= 5.6.6 - Authenticated (Administrator+) Local File Inclusion via 'block_name' Parameter","description":"The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the `block_name` parameter of the `/wp-json/backwpup/v1/getblock` REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive `str_replace()` sanitization of path traversal sequences. This makes it possible for authenticated attackers, with Administrator-level access and above, to include arbitrary PHP files on the server via crafted traversal sequences (e.g., `....//`), which can be leveraged to read sensitive files such as `wp-config.php` or achieve remote code execution in certain configurations. Administrators have the ability to grant individual users permission to handle backups, which may then allow lower-level users to exploit this vulnerability.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01335,"percentile":0.71546,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-22"],"published":"2026-04-14T02:25:47Z","modified":"2026-06-17T11:00:30Z","exploits":[{"source":"pocgithub","id":"Pixel-DefaultBR/CVE-2026-6227","title":"Pixel-DefaultBR/CVE-2026-6227","date":"2026-04-13","url":"https://github.com/Pixel-DefaultBR/CVE-2026-6227"}],"products":[{"vendor":"wp_media","product":"backwpup – wordpress backup \u0026 restore plugin"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/084e3f78-275b-4692-9cce-e17074f55cfb?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/backwpup/tags/5.6.5/inc/Utils/BackWPupHelpers.php#L23"},{"url":"https://plugins.trac.wordpress.org/browser/backwpup/trunk/inc/Utils/BackWPupHelpers.php#L23"},{"url":"https://plugins.trac.wordpress.org/browser/backwpup/tags/5.6.5/inc/Utils/BackWPupHelpers.php#L40"},{"url":"https://plugins.trac.wordpress.org/browser/backwpup/tags/5.6.5/src/Frontend/API/Rest.php#L52"},{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3490642%40backwpup%2Ftrunk\u0026old=3475739%40backwpup%2Ftrunk\u0026sfp_email=\u0026sfph_mail=#file26"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6227"},{"url":"https://github.com/advisories/GHSA-6gj4-hcqg-pjc8"}],"sources":{"cve":[{"id":"CVE-2026-6227","title":"BackWPup \u003c= 5.6.6 - Authenticated (Administrator+) Local File Inclusion via 'block_name' Parameter","description":"The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the `block_name` parameter of the `/wp-json/backwpup/v1/getblock` REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive `str_replace()` sanitization of path traversal sequences. This makes it possible for authenticated attackers, with Administrator-level access and above, to include arbitrary PHP files on the server via crafted traversal sequences (e.g., `....//`), which can be leveraged to read sensitive files such as `wp-config.php` or achieve remote code execution in certain configurations. Administrators have the ability to grant individual users permission to handle backups, which may then allow lower-level users to exploit this vulnerability.","status":"published","published":"2026-04-14T02:25:47.771Z","modified":"2026-04-14T13:03:30.768Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T13:49:53.818886Z"}],"euvd":[{"id":"EUVD-2026-22201","description":"The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the `block_name` parameter of the `/wp-json/backwpup/v1/getblock` REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive `str_replace()` sanitization of path traversal sequences. This makes it possible for authenticated attackers, with Administrator-level access and above, to include arbitrary PHP files on the server via crafted traversal sequences (e.g., `....//`), which can be leveraged to read sensitive files such as `wp-config.php` or achieve remote code execution in certain configurations. Administrators have the ability to grant individual users permission to handle backups, which may then allow lower-level users to exploit this vulnerability.","status":"published","published":"2026-04-14T02:25:47Z","modified":"2026-04-14T13:03:30Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:24:26.535553Z"}],"ghsa":[{"id":"GHSA-6gj4-hcqg-pjc8","title":"The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the `block_name`...","description":"The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the `block_name` parameter of the `/wp-json/backwpup/v1/getblock` REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive `str_replace()` sanitization of path traversal sequences. This makes it possible for authenticated attackers, with Administrator-level access and above, to include arbitrary PHP files on the server via crafted traversal sequences (e.g., `....//`), which can be leveraged to read sensitive files such as `wp-config.php` or achieve remote code execution in certain configurations. Administrators have the ability to grant individual users permission to handle backups, which may then allow lower-level users to exploit this vulnerability.","status":"published","published":"2026-04-14T03:31:40Z","modified":"2026-04-14T03:31:45Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:07:28.42851Z"}],"nvd":[{"id":"CVE-2026-6227","description":"The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the `block_name` parameter of the `/wp-json/backwpup/v1/getblock` REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive `str_replace()` sanitization of path traversal sequences. This makes it possible for authenticated attackers, with Administrator-level access and above, to include arbitrary PHP files on the server via crafted traversal sequences (e.g., `....//`), which can be leveraged to read sensitive files such as `wp-config.php` or achieve remote code execution in certain configurations. Administrators have the ability to grant individual users permission to handle backups, which may then allow lower-level users to exploit this vulnerability.","status":"published","published":"2026-04-14T03:16:08.887Z","modified":"2026-06-17T11:00:30.82Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:12:14.37744Z"}]}}