4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.006 Low
EPSS
Percentile
78.2%
FragmentListener in the HttpKernel component in Symfony 2.3.19 through
2.3.28, 2.4.9 through 2.4.10, 2.5.4 through 2.5.11, and 2.6.0 through
2.6.7, when ESI or SSI support enabled, does not check if the _controller
attribute is set, which allows remote attackers to bypass URL signing and
security rules by including (1) no hash or (2) an invalid hash in a request
to /_fragment.