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Case File

CVE-2017-16653

MEDIUM · CVSS 5.9 EPSS 1.47% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2018-08-06 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

Exhibit — Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2017-16653
Severity
MEDIUM
CVSS
5.9
EPSS
1.47%

Original Filing — NVD Description

An issue was discovered in Symfony before 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5, and 4.0-BETA5. The current implementation of CSRF protection in Symfony (Version >=2) does not use different tokens for HTTP and HTTPS; therefore the token is subject to MITM attacks on HTTP and can then be used in an HTTPS context to do CSRF attacks.