CVE-2026-105649

HIGHPre-NVD 7.37.3
EchelonGraph scoreLOW confidence

This high-severity CVE scores 7.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: secondary
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 7.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Ghost is a Node.js content management system. From 4.22.0 until 6.65.0, SVG media thumbnails and SVG images uploaded with a non-SVG file extension were stored without sanitization. This allowed any staff user, including Contributors, to host scripts on the site's domain, possibly resulting in compromise of other staff users' admin sessions. This issue is fixed in version 6.65.0.

CVSS v3
7.3
EG Score
7.3HIGHlow confidence
EG Risk
37
EG Risk 37/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity73% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
—
EPSS %ILE
—
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 5, 2026

Last Modified

October 5, 2026

Advisory Details (4)

Auto-updated Oct 5, 2026
Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

v6.65.0

Patch available: TryGhost/Ghost v6.65.0

https://github.com/TryGhost/Ghost/releases/tag/v6.65.0
github_commit Patch Available

commit 80686226d23d (TryGhost/Ghost)

Patch available: TryGhost/Ghost v6.65.0 (contains commit 80686226d23d)

https://github.com/TryGhost/Ghost/commit/80686226d23df56749f6b7ebb484850a8eba8072
generic

Improved thumbnail validation of svgs by acburdine · Pull Request #30919 · TryGhost/Ghost · GitHub

https://github.com/TryGhost/Ghost/issues/30919
githubMentions a patch (unverified)

Stored XSS via SVG Uploads Bypassing Sanitization · Advisory · TryGhost/Ghost · GitHub

https://github.com/TryGhost/Ghost/security/advisories/GHSA-8575-cr6v-7jh4

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 3× in last 7d / 3× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-05 20:25 UTCEG score recompute
  2. 2026-10-05 19:21 UTCEG score recompute
  3. 2026-10-05 19:20 UTCMITRE cvelistV5first tracked

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Frequently asked(4)

What is CVE-2026-105649?
CVE-2026-105649 is a high vulnerability published on October 5, 2026. Ghost is a Node.js content management system. From 4.22.0 until 6.65.0, SVG media thumbnails and SVG images uploaded with a non-SVG file extension were stored without sanitization. This allowed any staff user, including Contributors, to host scripts on the site's domain, possibly resulting in…
When was CVE-2026-105649 disclosed?
CVE-2026-105649 was first published on October 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-105649?
CVE-2026-105649 has a CVSS base score of 7.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-105649?
A fix for CVE-2026-105649 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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