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Contact Form 7 Database Addon <= 1.2.5.4 — CSV Injection

CVE-2021-24144Published · Updated

Action summary

Affected: <1.2.5.6Update to 1.2.5.6 or newer

All remediation steps
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-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed

Am I affected?

Database Addon for Contact Form 7 – CFDB7 contact-form-cfdb7

  1. Affected< 1.2.5.6
  2. Patched in1.2.5.6

Update to 1.2.5.6 or newer.

You are affected if you run < 1.2.5.6. Version 1.2.5.6 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Database Addon for Contact Form 7 – CFDB7.
  • 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 1.2.5.6, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Database Addon for Contact Form 7 – CFDB7 to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to SunCSR-thiennv.

Unvalidated input in the Contact Form 7 Database Addon plugin, versions before 1.2.5.6, was prone to a vulnerability that lets remote attackers inject arbitrary formulas into CSV files.

Exploits & references

Proof-of-concept & detection

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

Advisories & patches

More in Database Addon for Contact Form 7 – CFDB7

All 8
More vulnerabilities in Database Addon for Contact Form 7 – CFDB7
SeverityVulnerabilityCVEPublished
Medium5.3Unauthenticated Limited File Deletion via Injected 'attackcfdb7_file' Submission Field
≤1.4.1Update to 1.4.2
CVE-2026-107652
Medium6.1Unauthenticated Stored Cross-Site Scripting via tmpD Parameter
≤1.3.1Update to 1.3.2
CVE-2025-6740
Medium5.3Unauthenticated Sensitive Information Exposure
≤1.2.6.8Update to 1.2.7
CVE-2024-3870
High7.2CSV Injection
≤1.2.6.3Update to 1.2.6.5
CVE-2022-3634
Medium6.1Unauthenticated Stored Cross-Site Scripting
≤1.2.6.1Update to 1.2.6.2
CVE-2021-36885

Timeline

  1. CVE published

    Severity high, CVSS 8.8

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
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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