CSV Injection Affecting symfony/symfony package, versions >=5.0.0, <5.3.12 >=4.1.0, <4.4.35
Snyk CVSS
Attack Complexity
Low
Confidentiality
High
Threat Intelligence
EPSS
0.13% (47th
percentile)
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Test your applications- Snyk ID SNYK-PHP-SYMFONYSYMFONY-1925886
- published 24 Nov 2021
- disclosed 24 Nov 2021
- credit Jake Barwell, Jérémy Derussé
Introduced: 24 Nov 2021
CVE-2021-41270 Open this link in a new tabHow to fix?
Upgrade symfony/symfony to version 5.3.12, 4.4.35 or higher.
Overview
symfony/symfony is a PHP framework for web applications and a set of reusable PHP components.
Affected versions of this package are vulnerable to CSV Injection via prefixing cells with \t, \r, =, +, - or @ which are all interpreted as special characters for this package. An attacker could leverage this to cause a vulnerable application to execute malicious behaviours when consuming such a crafted CSV file.