CWE-1236

Craft CMS before 3.7.14 allows CSV injection.

Symfony/Serializer handles serializing and deserializing data structures for Symfony, a PHP framework for web and console applications and a set of reusable PHP components. Symfony versions 4.1.0 before 4.4.35 and versions 5.0.0 before 5.3.12 are vulnerable to CSV injection, also known as formula injection. In Symfony 4.1, maintainers added the opt-in `csv_escape_formulas` option in the `CsvEncoder`, to prefix all cells starting with `=`, `+`, `-` or `@` with a tab `t`. Since then, OWASP added 2 chars in that list: Tab (0x09) and Carriage return (0x0D). This makes the previous prefix char (Tab `t`) part of the vulnerable characters, and OWASP suggests using the single quote `’` for prefixing the value. Starting with versions 4.4.34 and 5.3.12, Symfony now follows the OWASP recommendations and uses the single quote `’` to prefix formulas and add the prefix to cells starting by `t`, `r` as well as `=`, `+`, `-` and `@`.

In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, exported CSV files could contain characters that a spreadsheet program could interpret as a command, leading to execution of a malicious string locally on a device, aka CSV injection.

IBM Guardium Data Encryption (GDE) 4.0.0.0 and 5.0.0.0 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 spreadsheet software. IBM X-Force ID: 213858.

SAP Business One – version 10.0, allows an attacker to inject formulas when exporting data to Excel (CSV injection) due to improper sanitation during the data export. An attacker could thereby execute arbitrary commands on the victim’s computer but only if the victim allows to execute macros while opening the file and the security settings of Excel allow for command execution.