The WordPress Backup and Migrate Plugin – Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE.
Cross-site scripting vulnerability in BackupGuard prior to version 1.1.47 allows an attacker to inject arbitrary web script or HTML via unspecified vectors.