Dasan Zhone · Dasan Zhone Znid Gpon 2426A · CVE-2019-10677
**Name of the Vulnerable Software and Affected Versions**
DASAN Zhone ZNID GPON 2426A EU version S3.1.285
**Description**
The issue affects the web interface of the device, allowing a remote attacker to execute arbitrary JavaScript code via manipulation of unsanitized GET parameters. Specifically, the `name` parameter in the `/zhndnsdisplay.cmd` endpoint and the `wlWscCfgMethod` and `wl wsc reg` parameters in the `/wlsecrefresh.wl` endpoint are vulnerable. This could potentially lead to Cross-Site Scripting (XSS) attacks.
**Recommendations**
For DASAN Zhone ZNID GPON 2426A EU version S3.1.285, consider disabling access to the `/zhndnsdisplay.cmd` and `/wlsecrefresh.wl` endpoints until a patch is available. Additionally, restrict the use of the `name`, `wlWscCfgMethod`, and `wl wsc reg` parameters in these endpoints to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.