An issue was discovered in nc-cms through 2017-03-10.
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
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
An issue was discovered in nc-cms through 2017-03-10. index.php?action=edit_html&name=home_content allows XSS via the HTML Source Editor. NOTE: the vendor disputes this because the form requires administrator privileges, and entering JavaScript is supported functionality
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00621 50th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nconsulting:nc-cms:*:*:*:*:*:*:*:* | up to 2017-03-10 | Vulnerable | Nconsulting |
- cpe:2.3:a:nconsulting:nc-cms:*:*:*:*:*:*:*:* Versions up to 2017-03-10 Vulnerable ·Nconsulting
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-18290
- 2026-10-03 Alias added: GHSA-4cgv-c33r-86xp
- 2026-11-07 EPSS moved to the 50th–90th percentile
References
Advisory 1
More Nconsulting Nc-cms vulnerabilities
- TI-2018-13373 nc-cms through 2017-03-10 allows remote attackers to execute arbitrary PHP code via the… CVSS 3.0CRITICAL 9.8
- TI-2019-05438 lib/NCCms.class.php in nc-cms 3.5 allows upload of .php files via the… CVSS 3.0HIGH 7.5
- TI-2018-12979 An issue was discovered in nc-cms through 2017-03-10. CVSS 3.0MEDIUM 6.1
Sources
- CVE-2018-18290 · CVE Program
- CVE-2018-18290 · NVD
- FIRST EPSS
- GHSA-4cgv-c33r-86xp · 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