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CVE-2021-36884

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

MEDIUM
5.4
CVSS Score
Published: November 19, 2021 at 06:19 PM UTC
Updated: June 17, 2026 at 03:59 AM UTC
1 product affected across 1 vendorBackup Migration

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Backup Migration· Backupblisswordpress-plugin
95%
v ≤ 1.1.5<= 1.1.5 ≤ v ≤ 1.1.5<= 1.1.5

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://patchstack.com/database/vulnerability/backup-backup/wordpress-backup-migration-plugin-1-1-5-authenticated-persistent-cross-site-scripting-xss-vulnerability
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://wordpress.org/plugins/backup-backup/#developers

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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