Backup Migration <= 1.4.6 - Unauthenticated PHP Object Injection via 'recursive_unserialize_replace'
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.8%
exploitation probability
0.8%top 47% of all CVEs
observed exploitation
nono source reports it
The Backup Migration plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.4.6 via deserialization of untrusted input in the 'recursive_unserialize_replace' function. This makes it possible for unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows attackers to delete arbitrary files, retrieve sensitive data, or execute code. An administrator must create a staging site in order to trigger the exploit.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
inisev · BackupBliss – Backup & Migration with Free Cloud StorageReferences
https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.4.6.1/includes/database/search-replace.php#L46https://plugins.trac.wordpress.org/browser//backup-backup/tags/1.4.6/includes/database/search-replace.php#L46https://www.wordfence.com/threat-intel/vulnerabilities/id/d5a0c514-5200-47f4-9d2e-684d68946b9a?source=cve