CVE-2022-3634

Contact Form 7 Database Addon <= 1.2.6.3 - CSV Injection

2022-10-27 00:00

Strategic Overview

Status: Patched in 1.2.6.5
Affected Plugin: Database Addon for Contact Form 7 – CFDB7
Affected Version: <= 1.2.6.3
CVSS: 7.2High
Weakness type: CWE-1236 · Improper Neutralization of Formula Elements in a CSV File
CVE: CVE-2022-3634

View all Database Addon for Contact Form 7 – CFDB7 vulnerabilities

At a glance

CVE-2022-3634 is a high-severity Improper Neutralization of Formula Elements in a CSV File vulnerability in the Database Addon for Contact Form 7 WordPress plugin, affecting versions <= 1.2.6.3. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). The issue is fixed in version 1.2.6.5; sites on affected versions should update now. Disclosed October 2022, reported by Adel Bouaricha.

Vulnerability Overview

The Contact Form 7 Database Addon plugin for WordPress is vulnerable to CSV Injection in versions up to, and including, 1.2.6.3. This allows attackers to embed untrusted input into exported CSV files, which can result in code execution when these files are downloaded and opened on a local system with a vulnerable configuration.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-1236: Improper Neutralization of Formula Elements in a CSV File

The product saves user-provided information into a Comma-Separated Value (CSV) file, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as a command when the file is opened by a spreadsheet product.

Remediation

Update to version 1.2.6.5, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Database Addon for Contact Form 7: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Database Addon for Contact Form 7 1.2.6.5 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-3634 https://www.wordfence.com/threat-intel/vulnerabilities/id/15679ce4-984a-4933-86c5-c8349b03abf9 https://nvd.nist.gov/vuln/detail/CVE-2022-3634

Related records

Other vulnerabilities in Database Addon for Contact Form 7 – CFDB7

CVSS Vector

7.2

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

This record contains material that is subject to copyright

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

https://www.cve.org/Legal/TermsOfUse

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/