onyx

onyx --cves cve-2023-40028

CVE-2023-40028

MEDPOCGhost
score
<0.1
cvss
4.9
epss
69.0%
published
2023-08-15
kev added
—
first seen

Ghost versions prior to 5.59.1 contain a symlink upload vulnerability caused by insufficient validation, letting authenticated users perform arbitrary file reads on the host system, exploit requires user authentication.

Timeline

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

events2023-08-15 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 68.7%2026-09-23: epss 68.7%2026-09-24: epss 68.7%2026-09-25: epss 68.7%2026-09-26: epss 68.7%2026-09-27: epss 68.7%2026-09-28: epss 68.7%2026-09-29: epss 68.7%2026-09-30: epss 68.7%2026-10-01: epss 68.7%2026-10-02: epss 69.0%2026-10-03: epss 69.0%2026-10-04: epss 69.0%2026-10-05: epss 69.0%2026-10-06: epss 69.0%2026-10-07: epss 69.0%2026-10-08: epss 69.0%2026-10-09: epss 69.0%2026-10-10: epss 69.0%2026-10-11: epss 69.0%2026-10-12: epss 69.0%2026-10-13: epss 69.0%2026-10-14: epss 69.0%2026-10-15: epss 69.0%2026-10-16: epss 69.0%2026-10-18: epss 69.0%2026-10-19: epss 69.0%2026-10-20: epss 69.0%2026-10-21: epss 69.0%69.0%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Tracked by Onyx
  3. Public PoC

Exploit availability

Public PoC flagged by vulnx; no direct exploit link among the citations.

Weaknesses

CWE-22 CWE-59

References 2