What’s Vulnerable › Vulnerabilities

CVE-2021-36884: WordPress Backup Migration plugin <= 1.1.5 - Authenticated Persistent Cross-Site Scripting (XSS) vulnerability

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-11-19 · updated 2026-06-17
• Weakness: CWE-79

Description

Authenticated Persistent Cross-Site Scripting (XSS) vulnerability discovered in WordPress Backup Migration plugin <= 1.1.5 versions.

Affected products

• inisev BackupBliss – Backup & Migration with Free Cloud Storage: through 1.1.5

References

• https://patchstack.com/database/vulnerability/backup-backup/wordpress-backup-migration-plugin-1-1-5-authenticated-persistent-cross-site-scripting-xss-vulnerability
• https://wordpress.org/plugins/backup-backup/#developers
• https://patchstack.com/database/vulnerability/backup-backup/wordpress-backup-migration-plugin-1-1-5-authenticated-persistent-cross-site-scripting-xss-vulnerability
• https://wordpress.org/plugins/backup-backup/#developers

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