CVE-2025-47786: Emlog

Medium severity, CVSS 4.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Emlog is an open source website building system. Version 2.5.13 has a stored cross-site scripting vulnerability that allows any registered user to construct malicious JavaScript, inducing all website users to click. In `/admin/comment.php`, the parameter `perpage_num` is not validated and is directly stored in the `admin_commend_perpage_num` field of the `emlog_options` table in the database. Moreover, the output is not filtered, resulting in the direct output of malicious code. As of time of publication, it is unclear if a patch exists.

Affected products

• Emlog Emlog: version 2.5.13 only

Published 2025-05-15. Last modified 2026-06-17.