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onyx --cves cve-2021-3129

CVE-2021-3129

N/AKEVNUCLEI ↗Laravel
score
<0.1
cvss
—
epss
99.9%
published
—
kev added
2023-09-18
first seen

Laravel Ignition contains a file upload vulnerability that allows unauthenticated remote attackers to execute malicious code due to insecure usage of file_get_contents() and file_put_contents().

Timeline

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

events2023-09-18 — Added to CISA KEVK2026-10-21 (seen by) — Tracked by OnyxT2026-10-21 (seen by) — Nuclei template: Laravel with Ignition <= v8.4.2 Debug Mode - Remote Code ExecutionNscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 99.9%2026-09-23: epss 99.9%2026-09-24: epss 99.9%2026-09-25: epss 99.9%2026-09-26: epss 99.9%2026-09-27: epss 99.9%2026-09-28: epss 99.9%2026-09-29: epss 99.9%2026-09-30: epss 99.9%2026-10-01: epss 99.9%2026-10-02: epss 99.9%2026-10-03: epss 99.9%2026-10-04: epss 99.9%2026-10-05: epss 99.9%2026-10-06: epss 99.9%2026-10-07: epss 99.9%2026-10-08: epss 99.9%2026-10-09: epss 99.9%2026-10-10: epss 99.9%2026-10-11: epss 99.9%2026-10-12: epss 99.9%2026-10-13: epss 99.9%2026-10-14: epss 99.9%2026-10-15: epss 99.9%2026-10-16: epss 99.9%2026-10-18: epss 99.9%2026-10-19: epss 99.9%2026-10-20: epss 99.9%2026-10-21: epss 99.9%99.9%mentions/day0no mentions in 30 days2026-09-22today
  1. Added to CISA KEV
  2. Tracked by Onyx
  3. Nuclei template Laravel with Ignition <= v8.4.2 Debug Mode - Remote Code Execution

Nuclei template

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

template
Laravel with Ignition <= v8.4.2 Debug Mode - Remote Code Execution
severity
CRIT
first seen
nuclei -id CVE-2021-3129 -u https://target.example

References 2