An issue was discovered in baserCMS before 4.1.4.
Priority LOW 23CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
An issue was discovered in baserCMS before 4.1.4. In the Register New Category feature of the Upload menu, the category name can be used for XSS via the data[UploaderCategory][name] parameter to an admin/uploader/uploader_categories/edit URI.
Why it matters now
EPSS 0.0073 54th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed baserproject/basercms (Packagist): 4.1.4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | baserproject/basercms (Packagist) | before 4.1.4 | 4.1.4 | Patch available | GHSA-fx2m-5m9v-jhgp |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- baserproject/basercms (Packagist) Vendor— Affected before 4.1.4 Fixed in 4.1.4 Patch available GHSA-fx2m-5m9v-jhgp
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:basercms:basercms:*:*:*:*:*:*:*:* | before 4.1.4 | Vulnerable | baserproject |
- cpe:2.3:a:basercms:basercms:*:*:*:*:*:*:*:* Versions before 4.1.4 Vulnerable ·baserproject
Remediation
- Fix · GHSA-fx2m-5m9v-jhgp baserproject/basercms (Packagist) Fixed in 4.1.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2018-18943
- 2026-10-03 Alias added: GHSA-fx2m-5m9v-jhgp
References
More baserproject Basercms vulnerabilities
- TI-2026-17563 baserCMS: OS Command Injection Leading to Remote Code Execution (RCE) CVSS 3.1CRITICAL 9.1
- TI-2025-23967 baserCMS: unsafe File Upload Leading to Remote Code Execution (RCE) CVSS 3.1HIGH 8.7
- TI-2026-23707 baserCMS: Mail Form Acceptance Bypass via Public API CVSS 3.1MEDIUM 5.3
- TI-2023-10935 baserCMS File Uploader Remote Code Execution (RCE) vulnerability CVSS 3.1CRITICAL 9.8
- TI-2023-10936 baserCMS allows any file to be uploaded CVSS 3.1CRITICAL 9.8
- TI-2023-23483 baserCMS Code Injection Vulnerability in Mail Form Feature CVSS 3.1CRITICAL 9.8
Sources
- CVE-2018-18943 · CVE Program
- CVE-2018-18943 · NVD
- FIRST EPSS
- GHSA-fx2m-5m9v-jhgp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences