CVE-2026-103291CWE-918ssrf

CVE-2026-103291

Medium · published October 1, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
3.3
In the wild
Unconfirmed
What it is

Ghost versions from 3.20.2 before 6.51.0 contain a server-side request forgery vulnerability in image dimension refetching that allows authenticated staff users to trigger outbound HTTP requests to arbitrary URLs. Attackers can point image cards at attacker-controlled hosts or internal network endpoints to access metadata services and internal resources unavailable from the public internet.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS
0.00143 · 3.3th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-10-01T15:17Z
References (2)
https://github.com/TryGhost/Ghost/security/advisories/GHSA-rrq6-9r3c-7w26 · [email protected]https://www.vulncheck.com/advisories/ghost-3.20.2-before-6.51.0-ssrf-via-image-size-fetch · [email protected]
EPSS history
Timeline
  • 03 OCT 03:41Z
    EPSS moved — → 0%
    epss
  • 01 OCT 10:42Z
    Ghost 3.20.2 before 6.51.0 SSRF via image-size fetch
    cvelistv5