TI-2020-18861 Aliases CVE-2020-36669 GHSA-2m88-5j35-4r5m

JetBackup – WP Backup, Migrate & Restore <= 1.3.9 - Cross-Site Request Forgery to Arbitrary File Upload

MEDIUM 40CWE-352Published 2023-03-07 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Tampering
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-352.

Summary

The JetBackup – WP Backup, Migrate & Restore plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including 1.3.9. This is due to missing nonce validation on the backup_guard_get_import_backup() function. This makes it possible for unauthenticated attackers to upload arbitrary files to the vulnerable site's server via a forged request, granted they can trick a site's administrator into performing an action such as clicking on a link.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00408 35th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
backupguard	JetBackup – Backup, Restore & Migrate	up to 1.3.9	—	No fix listed	CNA

JetBackup – Backup, Restore & Migrate Vendorbackupguard Affected up to 1.3.9 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:jetbackup:jetbackup::::::wordpress::*	up to 1.3.9	Vulnerable	JetBackup

cpe:2.3:a:jetbackup:jetbackup:*:*:*:*:*:wordpress:*:* Versions up to 1.3.9 Vulnerable ·JetBackup

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-36669
2026-10-03 Alias added: GHSA-2m88-5j35-4r5m

References

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/9ae8de00-ba4c-48d2-a566-13dac0bc4312

Other 2

TI-2021-06447 Backup Guard < 1.6.0 - Authenticated Arbitrary File Upload CVSS 3.1HIGH 7.2
TI-2017-13661 The Backup Guard plugin before 1.1.47 for WordPress has multiple XSS issues. CVSS 3.0MEDIUM 6.1
TI-2017-07938 Cross-site scripting in BackupGuard CVSS 3.1MEDIUM 6.1
TI-2020-18859 JetBackup – WP Backup, Migrate & Restore <= 1.4.1 - Missing Authorization to Unauthorized Backup Location Change CVSS 3.1MEDIUM 5.4
TI-2026-04236 Path traversal in backupguard JetBackup – Backup, Restore & Migrate CVSS 3.1MEDIUM 4.9
TI-2020-18860 JetBackup – WP Backup, Migrate & Restore <= 1.4.0 - Sensitive Information Disclosure CVSS 3.1MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences