CVE-2021-36884

MEDIUM
Published Nov 19, 20214y ago · Modified Jun 17, 20262w ago
5.4 CVSS 3.1
Medium
Find Similar
Published Nov 19, 2021 4y ago
Last Modified Jun 17, 2026 2w ago

Description

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

CVSS Details

Base Score
5.4
Exploitability
2.3
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
backupblissbackup_migration* ≤1.1.5

References 2

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

Remediation

  • patchstack.com https://patchstack.com/database/vulnerability/backup-backup/wordpress-backup-migration-plugin-1-1-5-authenticated-persistent-cross-site-scripting-xss-vulnerability
    PatchThird Party Advisory