CVE-2026-103276

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Source
https://cve.org/CVERecord?id=CVE-2026-103276
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103276.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-103276
Aliases
  • GHSA-6v8p-3jx9-8chr
Published
2026-10-01T10:42:13Z
Modified
2026-10-03T03:46:33Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Ghost before 6.20.0 File Read via URL Encoding Bypass
Details

Ghost versions before 6.20.0 contain a file extension filtering bypass vulnerability that allows unauthenticated attackers to read theme templates and metadata. Attackers can use URL encoding to bypass extension validation and access sensitive theme files.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-173"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103276.json"
}
References

Affected packages

Git / github.com/tryghost/ghost

Affected ranges

Type
GIT
Repo
https://github.com/tryghost/ghost
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
9da77c9302b617707699b3e8fb69c586648a6580
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "6.20.0"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

0.*
0.10.0
0.10.1
0.11.0
0.2.0
0.2.0-final
0.2.1
0.3.0
0.4.0
0.4.0-pre
0.4.0-pre2
0.4.0-pre3
0.4.2
0.4.2-rc1
0.4.2-rc2
0.5.0
0.5.0-rc1
0.5.0-rc2
0.5.0-rc3
0.5.0-rc4
0.5.10
0.5.2
0.5.2-rc1
0.5.2-rc2
0.5.3
0.5.4
0.5.5
0.5.6
0.5.7
0.5.8
0.5.9
0.6.0
0.6.1
0.6.2
0.6.3
0.6.4
0.7.0
0.7.1
0.7.2
0.7.3
0.7.4
0.7.5
0.7.6
0.7.7
0.7.8
0.7.9
0.8.0
0.9.0
0.9.0-beta.1
0.9.0-beta.2
1.*
1.0.0
1.0.0-alpha.1
1.0.0-alpha.10
1.0.0-alpha.11
1.0.0-alpha.13
1.0.0-alpha.14
1.0.0-alpha.15
1.0.0-alpha.16
1.0.0-alpha.17
1.0.0-alpha.18
1.0.0-alpha.19
1.0.0-alpha.2
1.0.0-alpha.20
1.0.0-alpha.21
1.0.0-alpha.3
1.0.0-alpha.4
1.0.0-alpha.5
1.0.0-alpha.6
1.0.0-alpha.7
1.0.0-alpha.8
1.0.0-alpha.9
1.0.0-beta.1
1.0.0-beta.2
1.0.0-rc.1
1.0.1
1.0.2
1.1.0
1.10.0
1.11.0
1.11.1
1.12.0
1.12.1
1.13.0
1.14.0
1.14.1
1.15.0
1.15.1
1.16.0
1.16.1
1.16.2
1.17.0
1.17.1
1.17.2
1.17.3
1.18.0
1.18.1
1.18.2
1.18.3
1.18.4
1.19.0
1.19.1
1.19.2
1.2.0
1.20.0
1.20.1
1.20.2
1.20.3
1.21.0
1.21.1
1.21.2
1.21.3
1.21.4
1.21.5
1.21.6
1.21.7
1.22.0
1.22.1
1.22.2
1.22.3
1.22.4
1.22.5
1.22.6
1.22.7
1.22.8
1.23.0
1.23.1
1.24.0
1.24.1
1.24.2
1.24.3
1.24.4
1.24.5
1.24.6
1.24.7
1.24.8
1.24.9
1.25.0
1.25.1
1.25.2
1.25.3
1.25.4
1.25.5
1.3.0
1.4.0
1.5.0
1.5.1
1.5.2
1.6.0
1.6.1
1.6.2
1.7.0
1.7.1
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.8.5
1.8.6
1.8.7
1.9.0
1.9.1
2.*
2.0.0
2.0.1
2.0.2
2.0.3
2.1.0
2.1.1
2.1.2
2.1.3
2.1.4
2.10.0
2.10.1
2.10.2
2.11.0
2.11.1
2.12.0
2.13.0
2.13.1
2.13.2
2.14.0
2.14.1
2.14.2
2.14.3
2.15.0
2.16.0
2.16.1
2.16.2
2.16.3
2.16.4
2.17.0
2.17.1
2.17.2
2.18.0
2.18.1
2.18.2
2.18.3
2.19.0
2.19.1
2.19.2
2.19.3
2.19.4
2.2.0
2.2.1
2.2.2
2.2.3
2.2.4
2.20.0
2.20.1
2.21.0
2.21.1
2.22.0
2.22.1
2.22.2
2.22.3
2.23.0
2.23.1
2.23.2
2.23.3
2.23.4
2.24.0
2.25.0
2.25.1
2.25.2
2.25.3
2.25.4
2.25.5
2.25.6
2.25.7
2.25.8
2.25.9
2.26.0
2.27.0
2.28.0
2.28.1
2.29.0
2.29.1
2.3.0
2.30.0
2.30.1
2.30.2
2.31.0
2.31.1
2.32.0
2.33.0
2.34.0
2.35.0
2.36.0
2.37.0
2.4.0
2.5.0
2.6.0
2.6.1
2.6.2
2.7.0
2.7.1
2.8.0
2.9.0
2.9.1
3.*
3.0.0
3.0.1
3.0.2
3.0.3
3.1.0
3.1.1
3.10.0
3.11.0
3.12.0
3.12.1
3.13.0
3.13.1
3.13.2
3.13.3
3.13.4
3.14.0
3.15.0
3.15.1
3.15.2
3.15.3
3.16.0
3.16.1
3.17.0
3.17.1
3.18.0
3.18.1
3.19.0
3.19.1
3.19.2
3.2.0
3.20.0
3.20.1
3.20.2
3.20.3
3.21.0
3.22.0
3.22.1
3.23.0
3.23.1
3.24.0
3.25.0
3.26.0
3.26.1
3.27.0
3.28.0
3.29.0
3.29.1
3.3.0
3.30.0
3.30.1
3.31.0
3.31.1
3.31.2
3.31.3
3.32.0
3.32.1
3.33.0
3.34.0
3.35.0
3.35.1
3.35.2
3.35.3
3.35.4
3.35.5
3.36.0
3.37.0
3.37.1
3.38.0
3.38.1
3.39.0
3.4.0
3.40.0
3.40.1
3.40.2
3.40.3
3.40.4
3.40.5
3.41.0
3.41.1
3.41.2
3.41.3
3.5.0
3.5.1
3.5.2
3.6.0
3.7.0
3.8.0
3.9.0
4.*
4.0.0-alpha.0
4.0.0-alpha.1
4.0.0-alpha.2
4.0.0-alpha.3
4.0.0-rc.0
@tryghost/admin-x-settings@0.*
@tryghost/admin-x-settings@0.0.2
@tryghost/admin-x-settings@0.0.3
@tryghost/admin-x-settings@0.0.4
@tryghost/admin-x-settings@0.0.5
@tryghost/admin-x-settings@0.0.6
@tryghost/admin-x-settings@0.0.7
@tryghost/admin-x-settings@0.0.8
@tryghost/announcement-bar@1.*
@tryghost/announcement-bar@1.1.6
@tryghost/announcement-bar@1.1.7
@tryghost/comments-ui@0.*
@tryghost/comments-ui@0.13.0
@tryghost/portal@2.*
@tryghost/portal@2.13.2
@tryghost/portal@2.14.0
@tryghost/portal@2.16.0
@tryghost/portal@2.17.0
@tryghost/portal@2.18.0
@tryghost/portal@2.19.3
@tryghost/portal@2.19.5
@tryghost/portal@2.19.6
@tryghost/portal@2.19.7
@tryghost/portal@2.19.8
@tryghost/portal@2.19.9
@tryghost/portal@2.20.0
@tryghost/portal@2.20.1
@tryghost/portal@2.20.2
@tryghost/portal@2.20.3
@tryghost/portal@2.21.0
@tryghost/portal@2.22.0
@tryghost/portal@2.23.0
@tryghost/portal@2.24.0
@tryghost/portal@2.24.1
@tryghost/portal@2.25.0
@tryghost/portal@2.26.0
@tryghost/portal@2.27.0
@tryghost/portal@2.28.0
@tryghost/portal@2.28.1
@tryghost/portal@2.29.0
@tryghost/portal@2.29.1
@tryghost/portal@2.29.2
@tryghost/portal@2.29.3
@tryghost/portal@2.30.0
@tryghost/portal@2.30.1
@tryghost/portal@2.31.0
@tryghost/portal@2.31.1
@tryghost/portal@2.31.2
@tryghost/portal@2.32.0
@tryghost/portal@2.33.0
@tryghost/portal@2.33.1
@tryghost/portal@2.33.2
@tryghost/portal@2.33.3
@tryghost/portal@2.33.4
@tryghost/portal@2.36.5
@tryghost/portal@2.37.0
@tryghost/signup-form@0.*
@tryghost/signup-form@0.0.1
@tryghost/signup-form@0.0.3
@tryghost/signup-form@0.1.0
@tryghost/signup-form@0.1.1
@tryghost/signup-form@0.1.2
@tryghost/signup-form@0.1.3
Other
backbone-admin
fancyFirstChar
v4.*
v4.0.0
v4.0.0-rc.1
v4.0.0-rc.2
v4.0.0-rc.3
v4.0.1
v4.1.0
v4.1.1
v4.1.2
v4.10.0
v4.15.0
v4.16.0
v4.17.0
v4.18.0
v4.19.0
v4.2.0
v4.20.0
v4.20.1
v4.21.0
v4.22.0
v4.22.2
v4.22.4
v4.24.0
v4.25.1
v4.26.0
v4.27.0
v4.27.1
v4.27.2
v4.28.0
v4.29.0
v4.3.0
v4.30.0
v4.30.1
v4.31.0
v4.32.0
v4.32.1
v4.32.3
v4.33.0
v4.34.0
v4.35.0
v4.36.0
v4.36.2
v4.37.0
v4.38.0
v4.39.0
v4.4.0
v4.40.0
v4.41.0
v4.41.3
v4.42.0
v4.43.0
v4.44.0
v4.45.0
v4.46.0
v4.5.0
v4.6.0
v4.6.1
v4.6.2
v4.7.0
v4.8.0
v4.9.0
v4.9.1
v5.*
v5.0.0
v5.0.1
v5.1.0
v5.1.1
v5.10.0
v5.100.0
v5.101.0
v5.101.4
v5.101.6
v5.102.0
v5.103.0
v5.104.0
v5.105.0
v5.106.0
v5.106.1
v5.107.0
v5.108.0
v5.108.1
v5.109.0
v5.109.3
v5.109.6
v5.11.0
v5.110.0
v5.110.2
v5.111.0
v5.112.0
v5.113.0
v5.114.0
v5.115.1
v5.116.0
v5.116.2
v5.117.0
v5.118.0
v5.118.1
v5.119.0
v5.119.2
v5.12.0
v5.12.1
v5.120.0
v5.120.2
v5.121.0
v5.122.0
v5.125.1
v5.126.0
v5.127.0
v5.127.1
v5.128.0
v5.129.0
v5.129.1
v5.129.2
v5.13.0
v5.130.0
v5.130.1
v5.14.0
v5.15.0
v5.16.0
v5.17.0
v5.18.0
v5.19.0
v5.2.0
v5.2.1
v5.2.2
v5.2.3
v5.20.0
v5.21.0
v5.22.10
v5.22.6
v5.23.0
v5.24.0
v5.25.0
v5.25.3
v5.25.5
v5.26.0
v5.26.1
v5.26.2
v5.26.3
v5.26.4
v5.27.0
v5.28.0
v5.3.0
v5.30.0
v5.30.1
v5.31.0
v5.33.0
v5.34.0
v5.35.0
v5.36.0
v5.37.0
v5.38.0
v5.39.0
v5.4.0
v5.40.0
v5.40.1
v5.41.0
v5.42.0
v5.42.2
v5.43.0
v5.44.0
v5.45.0
v5.45.1
v5.46.0
v5.47.0
v5.47.1
v5.48.0
v5.49.1
v5.49.3
v5.5.0
v5.51.0
v5.52.0
v5.53.0
v5.53.1
v5.53.3
v5.54.0
v5.54.1
v5.54.2
v5.55.0
v5.56.0
v5.57.0
v5.58.0
v5.59.0
v5.59.2
v5.6.0
v5.60.0
v5.61.0
v5.62.0
v5.63.0
v5.65.0
v5.66.0
v5.67.0
v5.67.1
v5.68.0
v5.69.0
v5.69.1
v5.7.0
v5.7.1
v5.70.0
v5.70.1
v5.71.0
v5.72.0
v5.73.0
v5.73.1
v5.74.0
v5.74.4
v5.75.0
v5.76.0
v5.77.0
v5.78.0
v5.79.0
v5.79.1
v5.79.2
v5.79.3
v5.79.5
v5.8.0
v5.8.1
v5.8.2
v5.8.3
v5.80.0
v5.80.2
v5.80.3
v5.80.4
v5.81.0
v5.81.1
v5.82.0
v5.82.1
v5.82.11
v5.82.12
v5.82.2
v5.82.3
v5.82.4
v5.82.6
v5.82.9
v5.83.0
v5.84.0
v5.84.1
v5.84.2
v5.85.0
v5.85.1
v5.86.0
v5.86.1
v5.86.2
v5.87.0
v5.87.1
v5.87.2
v5.88.0
v5.88.1
v5.88.2
v5.89.0
v5.89.1
v5.89.2
v5.9.0
v5.9.1
v5.9.2
v5.9.3
v5.9.4
v5.90.0
v5.91.0
v5.92.0
v5.93.0
v5.94.0
v5.94.1
v5.94.2
v5.95.0
v5.96.0
v5.96.1
v5.97.0
v5.98.0
v5.99.0
v6.*
v6.0.0
v6.0.0-alpha.2
v6.0.0-rc.0
v6.0.0-rc.1
v6.0.0-rc.2
v6.0.0-rc.3
v6.0.1
v6.0.10
v6.0.3
v6.0.4
v6.0.5
v6.0.6
v6.0.7
v6.0.8
v6.1.0
v6.10.0
v6.10.3
v6.11.0
v6.12.0
v6.13.0
v6.13.1
v6.13.2
v6.14.0
v6.15.0
v6.16.0
v6.16.1
v6.17.0
v6.17.1
v6.18.0
v6.18.2
v6.19.0
v6.19.1
v6.19.2
v6.19.3
v6.19.4
v6.2.0
v6.3.0
v6.3.1
v6.4.0
v6.5.0
v6.5.2
v6.5.3
v6.6.0
v6.7.0
v6.8.0
v6.8.1
v6.9.0
v6.9.2
v6.9.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103276.json"