VULNERABILITY INTELLIGENCE

CVE-2015-4050

CVSS score4.3 MEDIUM
EPSS probability8.21%
CISA KEVNot currently listed
Published2015-06-02
Last modified2026-06-17
CVSS vectorAV:N/AC:M/Au:N/C:N/I:P/A:N

Description

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.

Weakness classification

  • CWE-284: Improper Access Control

Primary references