CVE-2018-18678

Name of the Vulnerable Software and Affected Versions GNUBOARD5 versions prior to 5.3.2.0

Description The issue allows remote attackers to inject arbitrary web script or HTML via the gr 1~10 parameter in the adm/boardgroup form update.php endpoint, specifically through the "board group extra contents" parameter. This enables attackers to execute malicious scripts on the victim's browser.

Recommendations For versions prior to 5.3.2.0, update to version 5.3.2.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the adm/boardgroup form update.php endpoint to minimize the risk of exploitation. Avoid using the gr 1~10 parameter in this endpoint until the issue is resolved.