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WP Database Backup <= 4.3.5 — Cross-Site Request Forgery

76f9d37e-1339-4267-aaf6-38a591e97fa2Published · Updated

Action summary

Affected: <4.3.6Update to 4.3.6 or newer

All remediation steps
Watch plugin
Severity
High8.8
CVSS
8.8
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:R User interaction
Required
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-352 CSRF
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

WP Database Backup – Unlimited Database & Files Backup by Backup for WP wp-database-backup

  1. Affected< 4.3.6
  2. Patched in4.3.6

Update to 4.3.6 or newer.

You are affected if you run < 4.3.6. Version 4.3.6 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WP Database Backup – Unlimited Database & Files Backup by Backup for WP.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 4.3.6, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch WP Database Backup – Unlimited Database & Files Backup by Backup for WP to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Tristan.

The WP Database Backup plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 4.3.5. This is due to missing or incorrect nonce validation on the wp_db_backup_admin_init() function. This makes it possible for unauthenticated attackers to modify backups via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in WP Database Backup – Unlimited Database & Files Backup by Backup for WP

All 14
More vulnerabilities in WP Database Backup – Unlimited Database & Files Backup by Backup for WP
SeverityVulnerabilityCVEPublished
High7.2Authenticated (Administrator+) OS Command Injection via 'wp_db_exclude_table' Parameter
≤7.11Update to 7.12
CVE-2026-9834
High7.5Unauthenticated Database Back-Up Exposure
≤7.3Update to 7.4
CVE-2024-12330
Medium5.5 Authenticated (Admin+) Stored Cross-Site Scripting
≤5.8.3Update to 5.9
CVE-2022-2271
Medium5.5Authenticated (Admin+) Stored Cross-Site Scripting
≤5.8Update to 5.9
—
High7.5Unauthenticated Information Disclosure
≤5.5Update to 5.5.1
CVE-2020-7241

Same weakness (CSRF)

All CSRF
Other CSRF vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity high, CVSS 8.8

  2. Record last updated

Sources & licenses

Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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