XML external entity injection in WECON PI Studio HMI
Priority LOW 27CWE-611Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-611 and the CVSS impact.
Summary
In WECON Technology Co., Ltd. PI Studio HMI versions 4.1.9 and prior and PI Studio versions 4.2.34 and prior when parsing project files, the XMLParser that ships with Wecon PIStudio is vulnerable to a XML external entity injection attack, which may allow sensitive information disclosure.
Why it matters now
EPSS 0.01248 69th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| WECON | PI Studio HMI | up to 4.1.9 | — | No fix listed | CNA |
| WECON | PI Studio | up to 4.2.34 | — | No fix listed | CNA |
- PI Studio HMI VendorWECON Affected up to 4.1.9 Fixed in — No fix listed CNA
- PI Studio VendorWECON Affected up to 4.2.34 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:we-con:pi_studio:*:*:*:*:*:*:*:* | up to 4.2.34 | Vulnerable | WECON Technology Co., Ltd. |
| cpe:2.3:a:we-con:pi_studio_hmi:*:*:*:*:*:*:*:* | up to 4.1.9 | Vulnerable | WECON Technology Co., Ltd. |
- cpe:2.3:a:we-con:pi_studio:*:*:*:*:*:*:*:* Versions up to 4.2.34 Vulnerable ·WECON Technology Co., Ltd.
- cpe:2.3:a:we-con:pi_studio_hmi:*:*:*:*:*:*:*:* Versions up to 4.1.9 Vulnerable ·WECON Technology Co., Ltd.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-17889
- 2026-10-03 Alias added: GHSA-8j9h-qgqg-vvwq
References
More WECON vulnerabilities
- TI-2016-05016 Stack-based buffer overflow in WECON LeviStudio allows remote attackers to execute arbitrary code via a crafted file. CVSS 3.0HIGH 7.8
- TI-2018-10648 Stack-based buffer overflow in WECON PI Studio HMI CVSS 3.1CRITICAL 9.8
- TI-2016-03902 Heap-based buffer overflow in WECON LeviStudio allows remote attackers to execute arbitrary code via a crafted file. CVSS 3.1HIGH 7.8
- TI-2021-05929 Stack-based buffer overflow in WECON LeviStudioU CVSS 3.1HIGH 7.8
- TI-2021-05938 Heap-based buffer overflow in WECON LeviStudioU CVSS 3.1HIGH 7.8
- TI-2018-10640 Out-of-bounds write in WECON PI Studio HMI CVSS 3.0HIGH 8.8
Sources
- CVE-2018-17889 · CVE Program
- CVE-2018-17889 · NVD
- FIRST EPSS
- GHSA-8j9h-qgqg-vvwq · 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