CVE-2026-2947 rymcu forest User Profile UserInfoController.java updateUserInfo cross site scripting

Medium 5.1 Published Updated

Remote attackers can inject malicious scripts via the user profile update function in the rymcu forest application, potentially leading to session hijacking or code execution.

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

What is CVE-2026-2947?

CVE-2026-2947 is a medium-severity cross-site scripting vulnerability in rymcu forest, published on 22 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A vulnerability was detected in rymcu forest up to 0.0.5. This affects the function updateUserInfo of the file - src/main/java/com/rymcu/forest/web/api/user/UserInfoController.java of the component User Profile Handler. The manipulation results in cross site scripting. The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-94, CWE-79

Which versions are affected by CVE-2026-2947?

It affects 1 product.

Products include Rymcu Forest.

How do I fix CVE-2026-2947?

No fix has been published for CVE-2026-2947 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-2026-2947 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2947 exists.

Sources

Also known as GHSA-85vj-mhr5-mmvc.

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