onyx

onyx --cves cve-2019-5418

CVE-2019-5418

N/AKEVNUCLEI ↗Ruby on Rails
score
<0.1
cvss
—
epss
98.5%
published
—
kev added
2025-07-07
first seen

Rails Ruby on Rails contains a path traversal vulnerability in Action View. Specially crafted accept headers in combination with calls to `render file:` can cause arbitrary files on the target server to be rendered, disclosing the file contents.

Timeline

How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.

events2025-07-07 — Added to CISA KEVK2026-10-21 (seen by) — Tracked by OnyxT2026-10-21 (seen by) — Nuclei template: Rails File Content DisclosureNscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 98.5%2026-09-23: epss 98.5%2026-09-24: epss 98.5%2026-09-25: epss 98.5%2026-09-26: epss 98.5%2026-09-27: epss 98.5%2026-09-28: epss 98.5%2026-09-29: epss 98.5%2026-09-30: epss 98.5%2026-10-01: epss 98.5%2026-10-02: epss 98.5%2026-10-03: epss 98.5%2026-10-04: epss 98.5%2026-10-05: epss 98.5%2026-10-06: epss 98.5%2026-10-07: epss 98.5%2026-10-08: epss 98.5%2026-10-09: epss 98.5%2026-10-10: epss 98.5%2026-10-11: epss 98.5%2026-10-12: epss 98.5%2026-10-13: epss 98.5%2026-10-14: epss 98.5%2026-10-15: epss 98.5%2026-10-16: epss 98.5%2026-10-18: epss 98.5%2026-10-19: epss 98.5%2026-10-20: epss 98.5%2026-10-21: epss 98.5%98.5%mentions/day0no mentions in 30 days2026-09-22today
  1. Added to CISA KEV
  2. Tracked by Onyx
  3. Nuclei template Rails File Content Disclosure

Nuclei template

A verified check exists — you can scan for this today, and so can everyone else.

template
Rails File Content Disclosure
severity
HIGH
first seen
nuclei -id CVE-2019-5418 -u https://target.example

Weaknesses

CWE-22

References 2