CVE-2021-36884 MEDIUM

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

Vendor Backupbliss
Product Backup Migration (WordPress plugin)
Weakness CWE-79 · XSS
Published November 19, 2021
Last update April 28, 2026

CVSS base score

4.8/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

November 19, 2021 CVE published
April 28, 2026 Record updated