Cross-site scripting in Contec Co., Ltd. CONPROSYS HMI System
Priority MEDIUM 57CWE-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 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
Cross-site scripting vulnerability exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. If a user who can access the affected product with an administrative privilege configures specially crafted settings, an arbitrary script may be executed on the web browser of the other user who is accessing the affected product with an administrative privilege.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.62419 99th percentileScored 2026-11-07
Fix Fixed CONPROSYS HMI System (CHS) (Contec Co., Ltd.): 3.5.3
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 |
|---|---|---|---|---|---|
| Contec Co., Ltd. | CONPROSYS HMI System (CHS) | before 3.5.3 | 3.5.3 | Patch available | CNA |
- CONPROSYS HMI System (CHS) VendorContec Co., Ltd. Affected before 3.5.3 Fixed in 3.5.3 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:contec:conprosys_hmi_system:*:*:*:*:*:*:*:* | before 3.5.3 | Vulnerable | Contec Co., Ltd. |
- cpe:2.3:a:contec:conprosys_hmi_system:*:*:*:*:*:*:*:* Versions before 3.5.3 Vulnerable ·Contec Co., Ltd.
Remediation
- Fix · CNA CONPROSYS HMI System (CHS) (Contec Co., Ltd.) Fixed in 3.5.3
Timeline
- 2026-10-02 Threatist record created from CVE-2023-28651
- 2026-10-03 Alias added: GHSA-8xq3-xxw7-pvf5
References
More Contec Co., Ltd. Conprosys Hmi System vulnerabilities
- TI-2022-21852 OS command injection in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1CRITICAL 9.8
- TI-2023-13585 SQL injection in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1HIGH 7.2
- TI-2023-13175 Missing authorization in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1HIGH 8.8
- TI-2023-08595 Improper privilege management in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1HIGH 7.5
- TI-2023-13230 Cleartext storage of sensitive information in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1HIGH 8.1
- TI-2023-08633 Cross-site scripting in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1MEDIUM 5.4
Sources
- CVE-2023-28651 · CVE Program
- CVE-2023-28651 · NVD
- FIRST EPSS
- GHSA-8xq3-xxw7-pvf5 · 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