High severity · published May 16, 2026
CVE-2021-47979
WordPress Plugin Backup and Restore 1.0.3 Arbitrary File Deletion
8.8
CVSS
0.4%
EPSS
No
On KEV
Description
WordPress Plugin Backup and Restore 1.0.3 contains an arbitrary file deletion vulnerability that allows authenticated attackers to delete files by manipulating parameters in AJAX requests. Attackers can send POST requests to admin-ajax.php with crafted file_name and folder_name parameters to delete arbitrary files from the WordPress installation directory.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Backup and Restore · Miniorange
1.0.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-47979
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-47979
wordpress.org
https://wordpress.org/plugins/backup-and-restore-for-wp/
www.exploit-db.com
https://www.exploit-db.com/exploits/50503
www.miniorange.com
https://www.miniorange.com/
www.vulncheck.com
https://www.vulncheck.com/advisories/wordpress-plugin-backup-and-restore-arbitrary-file-deletion