CVE-2018-14774
Published:August 03, 2018
Updated:May 17, 2026
An issue was discovered in HttpKernel in Symfony 2.7.0 through 2.7.48, 2.8.0 through 2.8.43, 3.3.0 through 3.3.17, 3.4.0 through 3.4.13, 4.0.0 through 4.0.13, and 4.1.0 through 4.1.2. When using HttpCache, the values of the X-Forwarded-Host headers are implicitly set as trusted while this should be forbidden, leading to potential host header injection.
Affected Packages
symfony/symfony (PHP):
Affected version(s) >=v3.4.0 <v3.4.14Fix Suggestion:
Update to version v3.4.14symfony/symfony (PHP):
Affected version(s) >=v4.1.0 <v4.1.3Fix Suggestion:
Update to version v4.1.3symfony/symfony (PHP):
Affected version(s) >=v2.7.0 <v2.7.49Fix Suggestion:
Update to version v2.7.49symfony/symfony (PHP):
Affected version(s) >=v3.3.0 <v3.3.18Fix Suggestion:
Update to version v3.3.18symfony/symfony (PHP):
Affected version(s) >=v2.8.0 <v2.8.44Fix Suggestion:
Update to version v2.8.44symfony/symfony (PHP):
Affected version(s) >=v4.0.0 <v4.0.14Fix Suggestion:
Update to version v4.0.14Related Resources (9)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Input Validation
EPSS
Base Score:
0.15