TI-2021-06713 Aliases CVE-2021-24423 GHSA-4v9q-rjxq-3952

UpdraftPlus < 1.16.59 - Admin+ Stored Cross-Site Scripting

LOW 23CWE-79Published 2022-01-24 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: High
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

The UpdraftPlus WordPress Backup Plugin WordPress plugin before 1.6.59 does not sanitise its updraft_service settings, allowing high privilege users to set malicious JavaScript payload in it and leading to a Stored Cross-Site Scripting issue

Why it matters now

EPSS 0.00614 49th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed UpdraftPlus WordPress Backup Plugin (Unknown): 1.6.59

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	UpdraftPlus WordPress Backup Plugin	1.6.59 to before 1.6.59	1.6.59	Patch available	CNA

UpdraftPlus WordPress Backup Plugin VendorUnknown Affected 1.6.59 to before 1.6.59 Fixed in 1.6.59 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:updraftplus:updraftplus::::::wordpress::*	before 1.16.59	Vulnerable	UpdraftPlus

cpe:2.3:a:updraftplus:updraftplus:*:*:*:*:*:wordpress:*:* Versions before 1.16.59 Vulnerable ·UpdraftPlus

Remediation

Fix · CNA UpdraftPlus WordPress Backup Plugin (Unknown) Fixed in 1.6.59

Timeline

2026-10-02 Threatist record created from CVE-2021-24423
2026-10-03 Alias added: GHSA-4v9q-rjxq-3952

References

Exploit 1

https://wpscan.com/vulnerability/541974d6-2df8-4497-9aee-afd3b9024102

Other 1

https://m0ze.ru/vulnerability/%5B2021-05-09%5D-%5BWordPress%5D-%5BCWE-79%5D-UpdraftPlus-WordPress-Plugin-v1.16.56.txt

TI-2021-07300 UpdraftPlus < 1.16.66 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
TI-2017-12417 The UpdraftPlus plugin through 1.13.12 for WordPress allows remote PHP code execution… CVSS 3.0HIGH 8.1
TI-2022-00770 UpdraftPlus < 1.22.9 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
TI-2017-12416 The UpdraftPlus plugin through 1.13.12 for WordPress has SSRF in the updraft_ajax_handler… CVSS 3.0HIGH 8.1
TI-2022-00550 UpdraftPlus Free < 1.22.3 & Premium < 2.22.3 - Subscriber+ Backup Download CVSS 3.1MEDIUM 6.5
TI-2023-16148 WordPress UpdraftPlus Plugin <= 1.23.3 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 7.1

See all 10 →

Sources

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