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CVE-2018-9035: Contact Form 7 To Database Extension Project: Improper Neutralization of Formula Elements in a CSV File
CVE-2018-9035 is rated critical with a CVSS v3.0 base score of 9.6 and affects Contact Form 7 To Database Extension Project. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability description
CSV Injection vulnerability in ExportToCsvUtf8.php of the Contact Form 7 to Database Extension plugin 2.10.32 for WordPress allows remote attackers to inject spreadsheet formulas into CSV files via the contact form.
Severity breakdown
CVSS v3.0 9.6: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: Required. A user must take an action, such as opening a file or following a link.
- Scope: Changed. Impact reaches beyond the vulnerable component to other resources.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Underlying weakness
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.
Affected products
- Contact Form 7 To Database Extension Project: up to and including 2.10.32