CVE-2026-30940

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Source
https://cve.org/CVERecord?id=CVE-2026-30940
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30940.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-30940
Aliases
Published
2026-03-31T00:45:35.177Z
Modified
2026-04-10T05:42:02.539296Z
Severity
  • 7.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
baserCMS: Path Traversal in Theme File API Leads to Arbitrary File Write and RCE
Details

baserCMS is a website development framework. Prior to version 5.2.3, a path traversal vulnerability exists in the theme file management API (/baser/api/admin/bc-theme-file/theme_files/add.json) that allows arbitrary file write. An authenticated administrator can include ../ sequences in the path parameter to create a PHP file in an arbitrary directory outside the theme directory, which may result in remote code execution (RCE). This issue has been patched in version 5.2.3.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-22",
        "CWE-73"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30940.json"
}
References

Affected packages

Git / github.com/baserproject/basercms

Affected ranges

Type
GIT
Repo
https://github.com/baserproject/basercms
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
4cab078c93054f55d8fb36990a7ec7550f443932
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "5.2.3"
        }
    ]
}

Affected versions

2.*
2.0.0
2.0.0-beta
2.0.1
2.0.2
2.0.3
2.1.0
2.1.2
3.*
3.0.0
3.0.1
3.0.2
3.0.3
3.0.4
3.0.5
3.0.5.1
3.0.6
3.0.6-beta
3.0.7
4.*
4.0.0
4.0.0-beta
4.0.6
4.0.7
4.1.0
4.1.0.1
4.1.1
4.1.2
4.2.2
4.2.4
4.3.0
4.3.3
4.3.5
4.3.6
4.3.7
4.3.7.1
4.4.0
4.4.1.1
4.4.2.1
4.4.3
4.4.4
4.4.6
4.4.8
4.5.0
4.5.1
4.5.2
4.6.0
4.6.1
4.6.1.1
4.6.2
4.7.0
4.7.2
4.7.3
4.7.5
5.*
5.0.0-beta1
5.0.0-beta2
5.0.0-beta3
5.0.0-beta4
5.1.1
5.1.3
5.1.4
5.1.5
5.1.6
5.2.0
5.2.1
5.2.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30940.json"