Medium (4.3) in ghost ghost. EPSS 19% chance of exploitation in the next 30 days. Fixed in ghost 4.48.8, 5.22.7.
An authentication bypass vulnerability exists in the newsletter subscription functionality of Ghost Foundation Ghost 5.9.4. A specially-crafted HTTP request can lead to increased privileges. An attacker can send an HTTP request to trigger this vulnerability.
Severity
CVSS 3.1
4.3 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS
19% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-10-31)