CVE-2023-5504: high-severity vulnerability in wp_media BackWPup – WordPress Backup & Restore…
BackWPup <= 4.0.1 - Authenticated (Administrator+) Directory Traversal
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.9%
The BackWPup plugin for WordPress is vulnerable to Directory Traversal in versions up to, and including, 4.0.1 via the Log File Folder. This allows authenticated attackers to store backups in arbitrary folders on the server provided they can be written to by the server. Additionally, default settings will place an index.php and a .htaccess file into the chosen directory (unless already present) when the first backup job is run that are intended to prevent directory listing and file access. This means that an attacker could set the backup directory to the root of another site in a shared environment and thus disable that site.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
Affected products
wp_media · BackWPup – WordPress Backup & Restore PluginRelated CVEs — wp_media BackWPup – WordPress Backup & Restore…
In the same product, most dangerous first.
CVE-2026-6227HIGHBackWPup <= 5.6.6 - Authenticated (Administrator+) Local File Inclusion via 'block_name' ParameterEPSS 1.3%CVE-2023-5505MEDIUMBackWPup <= 4.0.1 - Authenticated (Administrator+) Directory TraversalEPSS 1.0%CVE-2023-5775LOWBackWPup <= 4.0.2 - Plaintext Storage of Backup Destination PasswordEPSS 0.4%CVE-2025-15041HIGHBackWPup <= 5.6.2 - Authenticated (BackWPup Helper+) Privilege Escalation via Arbitrary Options UpdateEPSS 0.4%CVE-2025-10579MEDIUMBackWPup <= 5.5.0 - Missing Authorization to Sensitive Information ExposureEPSS 0.3%
References
https://plugins.trac.wordpress.org/browser/backwpup/trunk/inc/class-page-settings.php?rev=2818974#L457https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3000176%40backwpup%2Ftrunk&old=2980789%40backwpup%2Ftrunk&sfp_email=&sfph_mail=https://www.wordfence.com/threat-intel/vulnerabilities/id/e830fe1e-1171-46da-8ee7-0a6654153f18?source=cve