High
Ghost 2.5.0 before 6.34.0 Untrusted Script Execution via oEmbed
Ghost versions from 2.5.0 before 6.34.0 contain an untrusted script execution vulnerability in the oEmbed preview feature that fails to sandbox externally hosted scripts. Attackers can craft malicious oEmbed content to execute scripts in the context of a staff user's admin session, potentially compromising administrative access.
Announced Group revision 1
Original source ↗CVE-2026-103277
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-103277
Ghost
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "TryGhost",
"product": "Ghost",
"versions": [
{
"status": "affected",
"version": "2.5.0",
"lessThan": "6.34.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.34.0",
"versionType": "semver"
}
],
"packageURL": "pkg:npm/ghost",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-103277
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #5189 · Revision 1
- Added to Heist Feed
- Publisher date