Security Research & Advisories

CSV Injection Vulnerability in i-doit 1.14.2

Product phpList
Affected Version(s) 1.14.2 and probably prior
Tested Version(s) 1.14.2
Vendor Notification May 27, 2020
Advisory Publication May 27, 2020 [without technical details]
Vendor Fix Version 1.15
Public Disclosure August 4, 2020
Latest Modification August 4, 2020
CVE Identifier(s) CVE-2020-13826
Product Description i-doit is a web based IT documentation and CMDB. i-doit documents IT-systems and their changes, defines emergency plans, displays vital information and helps to ensure a stable and efficient IT operation.
Credits Carlos Ramírez L. Security Researcher & Penetration Tester @wizlynx group

Vulnerability Details

CSV Injection Vulnerability in i-doit 1.14.2
Severity: Medium CVSS Score: 6.5 CWE-ID: CWE-434 Status: Not Fixed
Vulnerability Description
The i-doit web application is affected by CSV Injection vulnerability affecting version 1.14.2 and probably prior versions. An attacker can use the vulnerability to inject malicious code into CSV files in order to gain control over the user's computer, taking advantage of the user's tendency to ignore security warnings in spreadsheets they have downloaded from their own website and exfiltrate the contents of the spreadsheet, or other open spreadsheets.
CVSS Base Score
Attack Vector Network Scope Changed
Attack Complexity Low Confidentiality Impact Low
Privileges Required Low Integrity Impact Low
User Interaction Required Availability Impact Low


The application i-doit allows to export the content of the objects created in a CSV file, which allowed an attacker to inject malicious code due to the lack of input validation and output encoding.


The objects' parameters are copied and exported in CSV files that can be interpreted by the affected user's computer. The payload =cmd|' /C calc 'A0 was submitted as the name of the title object, as shown below:

The code is stored without modifications, and the application allows to download the control and configuration of the objects in CSV format.

As shown in the following screenshot, the malicious payload is executed and in our demonstration Microsoft Calculator is opening on the administrator’s machine.