CVSS 3.0
7.2 highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NCVE-2018-14774
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.
Severity
- EPSS
- 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
- CWE
- CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- sensiolabs:symfony
References
- https://github.com/symfony/symfony/commit/725dee4cd8b4ccd52e335ae4b4522242cea9bd4a
- https://symfony.com/blog/cve-2018-14774-possible-host-header-injection-when-using-httpcache
- https://github.com/symfony/symfony/commit/725dee4cd8b4ccd52e335ae4b4522242cea9bd4a
- https://symfony.com/blog/cve-2018-14774-possible-host-header-injection-when-using-httpcache