CVE-2021-21424
MEDIUMSensiolabs Symfony < 3.4.48 - Information Disclosure
Title source: ruleDescription
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The ability to enumerate users was possible without relevant permissions due to different handling depending on whether the user existed or not when attempting to use the switch users functionality. We now ensure that 403s are returned whether the user exists or not if a user cannot switch to a user or if the user does not exist. The patch for this issue is available for branch 3.4.
Exploits (2)
References (7)
Scores
CVSS v3
5.3
EPSS
0.0027
EPSS Percentile
50.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Details
CWE
CWE-200
CWE-203
Status
published
Products (10)
fedoraproject/fedora
33
fedoraproject/fedora
34
lexik/jwt-authentication-bundle
2.0.0 - 2.10.7Packagist
sensiolabs/symfony
2.8.0 - 3.4.48
symfony/maker-bundle
1.27.0 - 1.29.2Packagist
symfony/security
5.0.0 - 5.2.8Packagist
symfony/security-core
2.8.0 - 3.4.48Packagist
symfony/security-guard
2.8.0 - 3.4.48Packagist
symfony/security-http
5.1.0 - 5.2.8Packagist
symfony/symfony
2.8.0 - 3.4.49Packagist
Published
May 13, 2021
Tracked Since
Feb 18, 2026