CVE-2026-23702
Published: 27 February 2026
Summary
CVE-2026-23702 is a high-severity OS Command Injection (CWE-78) vulnerability in Copeland Xweb 300D Pro Firmware. Its CVSS base score is 8.0 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 23.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2026-23702 is an OS command injection vulnerability (CWE-78) in XWEB Pro version 1.12.1 and prior. The issue allows malicious input to be injected into the server username field during the import preconfiguration action in the API V1 route, published on 2026-02-27 with a CVSS v3.1 base score of 8.0 (AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H).
An authenticated attacker with high privileges can exploit this vulnerability remotely by sending crafted input to the affected API endpoint, resulting in remote code execution on the underlying system.
CISA advisory ICSA-26-057-10, along with the associated CSAF document and Copeland's system software update page, provide guidance on mitigations, including available software updates to address the vulnerability.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-8974
Vulnerability details
An OS command injection vulnerability exists in XWEB Pro version 1.12.1 and prior, enabling an authenticated attacker to achieve remote code execution on the system by sending malicious input injected into the server username field of the import preconfiguration action…
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in the API V1 route.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
OS command injection vulnerability in a network-accessible API endpoint enabling remote code execution directly maps to T1190: Exploit Public-Facing Application.
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Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly mitigates the CVE by requiring identification, reporting, and timely application of software updates to remediate the OS command injection flaw as advised by CISA.
Prevents OS command injection by enforcing validation of malicious inputs in the server username field of the API V1 import preconfiguration action.
Limits the impact of remote code execution by ensuring authenticated high-privilege accounts operate under least privilege principles.