CVE-2025-53926 Emlog has Stored Cross-site Scripting vulnerability due to error

Medium 6.1 Published 16 Jul 2025 Updated 16 Jul 2025

Remote attackers can inject arbitrary web script or HTML via comment parameters in Emlog, potentially leading to session hijacking or malicious actions.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-53926?

CVE-2025-53926 is a medium-severity cross-site scripting vulnerability in Emlog Emlog, published on 16 Jul 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Emlog is an open source website building system. A cross-site scripting (XSS) vulnerability in emlog up to and including pro-2.5.17 allows remote attackers to inject arbitrary web script or HTML via the comment and comname parameters. Reflected XSS requires the victim to send POST requests, therefore the victim must be persuaded into clicking into sent URL. As of time of publication, no known patched versions exist.

Weakness: CWE-79

Which versions are affected by CVE-2025-53926?

It affects 1 product.

Products include Emlog Emlog.

How do I fix CVE-2025-53926?

No fix has been published for CVE-2025-53926 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-53926 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53926 exists.

All Emlog Emlog vulnerabilities

Sources

Also known as GHSA-g8jx-pj5p-fm3x.