CVE-2026-70596: TryGhost Ghost · Cross-site Scripting
Affects TryGhost GhostSource CVE Database V5
Not known to be exploited · CVSS 4.3 Medium : upgrade to 6.54.1 when convenient.
Data as of 26 Oct 2026, 09:08 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-08-05.
- Patch
- Available – fixed in 6.54.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 5 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade TryGhost Ghost to 6.54.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| TryGhostGhost | Affected
| Fixed in
|
Description
Ghost is a Node.js content management system. From 4.9.0 until 6.54.1, an input validation issue allowed any staff user to create a post with content in feature_image_caption that could be used to hijack another staff user's Ghost Admin session, resulting in privilege escalation. This issue is fixed in 6.54.1.
References
- github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv (opens in a new tab)
- github.com/TryGhost/Ghost/pull/29635 (opens in a new tab)
- github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e (opens in a new tab)
- github.com/TryGhost/Ghost/releases/tag/v6.54.1 (opens in a new tab)