CVE-2025-13810 jsnjfz WebStack-Guns KaptchaController.java renderPicture path traversal

Medium 6.9 Published 1 Dec 2025 Updated 24 Feb 2026

Remote attackers can exploit a path traversal vulnerability in the KaptchaController to read arbitrary files from the server.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-13810?

CVE-2025-13810 is a medium-severity path traversal vulnerability in jsnjfz WebStack-Guns, published on 1 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability was found in jsnjfz WebStack-Guns 1.0. This affects the function renderPicture of the file src/main/java/com/jsnjfz/manage/modular/system/controller/KaptchaController.java. Performing a manipulation results in path traversal. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-22

Which versions are affected by CVE-2025-13810?

It affects 1 product.

Products include Jsnjfz Webstack-Guns.

How do I fix CVE-2025-13810?

No fix has been published for CVE-2025-13810 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2025-13810 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-13810 exists.

Sources

Also known as GHSA-fm3w-pc9f-x993.