{"id":"CVE-2026-7693","published":"2026-08-05T08:16:44.703","lastModified":"2026-08-05T16:17:09.553","description":"The Backup Migration plugin for WordPress is vulnerable to OS Command Injection in all versions up to, and including, 2.1.5.1 due to insufficient sanitization of the `file` POST parameter on the `restoreBackup()` AJAX handler. The handler applies `esc_attr()` — an HTML-context sanitizer that does not strip shell metacharacters — and concatenates the result, unquoted, into a `php-cli -f … bmi_restore <file> <remote>` command passed to `exec()`. This makes it possible for authenticated attackers, with Administrator-level access (or any user granted the plugin's `do_backups` capability) and above, to execute arbitrary OS commands as the web-server user, bypassing WordPress hardening constants such as `DISALLOW_FILE_EDIT` and `DISALLOW_FILE_MODS` that would otherwise prevent code execution from the admin UI. This is an incomplete fix of CVE-2023-7002, which patched the same pattern only in the `$_POST['url']` path of `handleQuickMigration()`; the equivalent mitigations (`rawurlencode()` + explicit shell-metachar replacement + double-quoting in `exec()`) were never applied to `$backupName`.","cvssScore":7.2,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-77"],"vendors":[],"products":[],"references":[{"url":"https://plugins.trac.wordpress.org/browser/backup-backup/tags/2.1.5.1/includes/ajax.php#L3019","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/backup-backup/tags/2.1.5.1/includes/ajax.php#L3025","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/backup-backup/tags/2.1.5.1/includes/ajax.php#L3422","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/backup-backup/tags/2.1.5.1/includes/ajax.php#L3444","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/backup-backup/tags/2.1.5.1/includes/initializer.php#L136","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/backup-backup/trunk/includes/ajax.php#L3025","tags":[]},{"url":"https://plugins.trac.wordpress.org/changeset?new=3540041%40backup-backup%2Ftags%2F2.1.5.2&old=3512153%40backup-backup%2Ftags%2F2.1.5.1","tags":[]},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/af6a7052-6dab-42f0-a2af-0cf459d309d7?source=cve","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"The flaw allows authenticated attackers with Administrator-level access to execute arbitrary OS commands as the web-server user through insufficient sanitization of the `file` POST parameter in the Backup Migration plugin for WordPress.","exploitability":"Exploitation requires an attacker to have Administrator-level access or be granted the `do_backups` capability. The vulnerability is relatively straightforward given the lack of proper input validation and command execution safeguards.","blast_radius":"If exploited, this could lead to complete compromise of the web server hosting the WordPress site, potentially affecting other sites hosted on the same server due to shared resources or misconfigurations.","remediation":"Update the Backup Migration plugin to the latest version that addresses this vulnerability. Alternatively, disable and remove the plugin if it is no longer needed.","tags":["rce","auth-bypass","web","wordpress"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-08-11T07:02:48.810Z"}}