CVE-2026-23702 Copeland XWEB and XWEB Pro OS Command Injection

High 8.0 Published 27 Feb 2026 Updated 2 Mar 2026

Authenticated attackers can execute arbitrary OS commands via the API import action, risking full system compromise on Copeland XWEB controllers.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-23702?

CVE-2026-23702 is a high-severity command injection vulnerability in Copeland XWEB 300D PRO, published on 27 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

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 in the API V1 route.

Weakness: CWE-78

Which versions are affected by CVE-2026-23702?

It affects 3 products.

Products include Copeland Xweb 300d Pro Firmware, Copeland Xweb 500b Pro Firmware, Copeland Xweb 500d Pro Firmware.

How do I fix CVE-2026-23702?

No fix has been published for CVE-2026-23702 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-23702 being exploited?

There is no known exploitation of CVE-2026-23702 in the wild and no public exploit code.

Sources

Also known as GHSA-9gg6-qjxr-3pfg.