CSV Injection in Symfony

Published: 2021-11-25
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-41270
Exploitation vector Network
Public exploit N/A
Vulnerable software
Web applications / CMS

Vendor SensioLabs

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Neutralization of Formula Elements in a CSV File

EUVDB-ID: #VU58371

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-41270

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

Exploit availability: No


The vulnerability allows a remote attacker to compromsie the target system.

The vulnerability exists due to improper neutralization of formula elements in a CSV File. A remote authenticated attacker can inject formulas into the tag data.


Install update from vendor's website.

Vulnerable software versions

Symfony: 4.4.0 - 4.4.34

CPE2.3 External links


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.