CAYIN Technology｜CAYIN CMS-WS/CMS-SE/SMP - Arbitrary File Upload
Priority MEDIUM 41CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
CAYIN CMS-WS, CMS-SE, and SMP series products developed by CAYIN Technology have an Arbitrary File Upload vulnerability. Privileged remote attackers can upload and execute web shells backdoors, thereby enabling arbitrary code execution on the server.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0082 57th 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
- Total
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 |
|---|---|---|---|---|---|
| CAYIN Technology | CAYIN CMS-WS | up to 1.0.25336 | — | No fix listed | CNA |
| CAYIN Technology | CAYIN CMS-SE | up to 11.0.25336 | — | No fix listed | CNA |
| CAYIN Technology | CAYIN SMP | up to 4.0.25336 | — | No fix listed | CNA |
- CAYIN CMS-WS VendorCAYIN Technology Affected up to 1.0.25336 Fixed in — No fix listed CNA
- CAYIN CMS-SE VendorCAYIN Technology Affected up to 11.0.25336 Fixed in — No fix listed CNA
- CAYIN SMP VendorCAYIN Technology Affected up to 4.0.25336 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-80233
- 2026-10-03 Alias added: GHSA-6c9p-6j83-qg5r
References
More CAYIN Technology vulnerabilities
- TI-2020-19045 Cayin Signage Media Player 3.0 Authenticated Remote Command Injection via NTP Parameter CVSS 4.0HIGH 8.7
- TI-2024-07164 CAYIN Technology CMS - Sensitive File Download CVSS 3.1HIGH 7.5
- TI-2026-55465 CAYIN Technology｜CAYIN CMS-WS/CMS-SE - Missing Authentication CVSS 4.0MEDIUM 6.9
- TI-2024-07163 CAYIN Technology CMS - OS Command Injection CVSS 3.1HIGH 7.2
Sources
- CVE-2026-80233 · CVE Program
- CVE-2026-80233 · NVD
- FIRST EPSS
- GHSA-6c9p-6j83-qg5r · 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