High
Ghost 5.8.0 before 6.34.0 Staff Account Takeover via Admin iframe
Type: advisorySources: OSV
Ghost versions 5.8.0 before 6.34.0 contain an input validation vulnerability in the admin iframe that allows attackers to take over staff user accounts. Attackers with content publishing privileges can craft malicious pages that, when visited by active staff users, enable account takeover through improper input validation.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-103278
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 6 Nov 2026, 02:13 UTC · Revision 1
Source evidence
Ghost 5.8.0 before 6.34.0 Staff Account Takeover via Admin iframe
core-osv · Original sourcePublished 1 Oct 2026, 10:42 UTC
Ghost versions 5.8.0 before 6.34.0 contain an input validation vulnerability in the admin iframe that allows attackers to take over staff user accounts. Attackers with content publishing privileges can craft malicious pages that, when visited by active staff users, enable account takeover through improper input validation.
osv:CVE-2026-103278
Complete source record
{
"id": "10877955146cccb7f900d2d7490d4e530c03dbc336da65ecc597760eb8b57158",
"url": "https://osv.dev/vulnerability/CVE-2026-103278",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Ghost 5.8.0 before 6.34.0 Staff Account Takeover via Admin iframe",
"summary": "Ghost versions 5.8.0 before 6.34.0 contain an input validation vulnerability in the admin iframe that allows attackers to take over staff user accounts. Attackers with content publishing privileges can craft malicious pages that, when visited by active staff users, enable account takeover through improper input validation.",
"evidence": "osv:CVE-2026-103278",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-103278",
"aliases": [
"BIT-ghost-2026-103278",
"CVE-2026-103278",
"GHSA-5pxf-whwv-g54g"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/tryghost/ghost",
"type": "GIT",
"events": [
{
"introduced": "512c40b5d55e2a6e71ea1d6f4b0c04d948c193b4"
},
{
"fixed": "10da09186253d7be24698d3a5512c7f9cbea13a4"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "5.8.0"
},
{
"fixed": "6.34.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "5.8.0"
},
{
"fixed": "6.34.0"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103278.json"
}
}
],
"modified": "2026-10-28T02:30:46.236770748Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103278.json",
"https://github.com/TryGhost/Ghost/security/advisories/GHSA-5pxf-whwv-g54g",
"https://nvd.nist.gov/vuln/detail/CVE-2026-103278",
"https://www.vulncheck.com/advisories/ghost-5.8.0-before-6.34.0-staff-account-takeover-via-admin-iframe"
],
"provider_metadata": {
"cwe_ids": [
"CWE-23"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103278.json"
}
},
"related_cves": [
{
"value": "CVE-2026-103278",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 514181,
"published_at": "2026-10-01T10:42:15.359+00:00"
}