Improper Neutralization of Formula Elements in a CSV File in Serializer - CVE-2021-41270
Published: November 25, 2021
Vulnerability identifier: #VU58371
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-41270
CWE-ID: CWE-1236
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Serializer
Symfony
Fedora
php-symfony4
Symfony
Fedora
php-symfony4
How to mitigate CVE-2021-41270
Install updates from vendor's website.
Serializer - addressed in versions 4.4.35, 5.3.12
Symfony - update to 4.4.35
php-symfony4 - addressed in versions 4.4.35-1.fc34, 4.4.35-1.fc35
Symfony - update to 4.4.35
php-symfony4 - addressed in versions 4.4.35-1.fc34, 4.4.35-1.fc35