---
id: CVE-2025-13810
title: A vulnerability was found in jsnjfz WebStack-Guns 1.0
summary: >-
  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 traver…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-22
vendor: jsnjfz
product: webstack-guns
affected:
  - webstack-guns = 1.0
published: '2025-12-01'
updated: '2026-09-03'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-13810'
references:
  - url: >-
      https://github.com/Xzzz111/exps/blob/main/archives/WebStack-Guns-PathTraversal-1/report.md
    label: cna@vuldb.com
  - url: >-
      https://github.com/Xzzz111/exps/blob/main/archives/WebStack-Guns-PathTraversal-1/report.md#proof-of-concept
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?ctiid.333820'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?id.333820'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?submit.692080'
    label: cna@vuldb.com
tags:
  - nvd
epss: 0.00996
epssPercentile: 0.61132
ingestedAt: '2026-09-03T03:55:23.264Z'
---

## Overview

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.

## Affected

- `webstack-guns = 1.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.