CVE-2025-15094 sunkaifei FlyCMS User Login UserController.java userLogin cross site scripting

Medium 5.3 Published Updated

Remote attackers can execute arbitrary scripts via the redirectUrl parameter in FlyCMS user login, potentially leading to session hijacking or code execution.

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-2025-15094?

CVE-2025-15094 is a medium-severity cross-site scripting vulnerability in sunkaifei FlyCMS, published on 26 Dec 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

A weakness has been identified in sunkaifei FlyCMS up to abbaa5a8daefb146ad4d61027035026b052cb414. The impacted element is the function userLogin of the file src/main/java/com/flycms/web/front/UserController.java of the component User Login. Executing a manipulation of the argument redirectUrl can lead to cross site scripting. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-94, CWE-79

Which versions are affected by CVE-2025-15094?

It affects 1 product.

Products include Sunkaifei Flycms.

How do I fix CVE-2025-15094?

No fix has been published for CVE-2025-15094 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-2025-15094 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15094 exists.

Sources

Also known as GHSA-hg49-2rqm-p9hf.

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