CyberTutor｜NewSiteServer (NSS) - Arbitrary File Upload
Priority LOW 23CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
NewSiteServer (NSS) developed by CyberTutor has an Arbitrary File Upload vulnerability. Unauthenticated remote attackers can upload arbitrary files, including malicious HTML files, thereby achieving effects similar to cross-site scripting.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00327 25th 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 |
|---|---|---|---|---|---|
| CyberTutor | NewSiteServer (NSS) | all | — | No fix listed | CNA |
- NewSiteServer (NSS) VendorCyberTutor Affected all Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-19852
- 2026-10-03 Alias added: GHSA-q3pc-8mvq-c8v3
References
More CyberTutor vulnerabilities
- TI-2025-11787 CyberTutor｜New Site Server - Use of Client-Side Authentication CVSS 4.0CRITICAL 9.3
- TI-2026-16099 CyberTutor｜NewSiteServer (NSS) - Missing Authentication CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-19852 · CVE Program
- CVE-2026-19852 · NVD
- FIRST EPSS
- GHSA-q3pc-8mvq-c8v3 · 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