---
id: CVE-2026-93463
title: >-
  A cross-site scripting vulnerability via script validation bypass exists in
  baserCMS
summary: >-
  A cross-site scripting vulnerability via script validation bypass exists in
  baserCMS. If this vulnerability is exploited, an arbitrary script may be
  executed in the user's web browser.
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: baserCMS User Community
product: baserCMS
affected:
  - baserCMS < 5.4.1
  - baserCMS < 5.3.1
published: '2026-09-30'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T01:16:44.923'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93463'
references:
  - url: 'https://basercms.net/security/JVN_14353754'
    label: vultures@jpcert.or.jp
  - url: 'https://jvn.jp/en/jp/JVN14353754'
    label: vultures@jpcert.or.jp
tags:
  - nvd
  - cve.org
epss: 0.00151
epssPercentile: 0.04174
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-30T17:02:34.366438Z'
ingestedAt: '2026-09-30T07:59:43.038Z'
---

## Overview

A cross-site scripting vulnerability via script validation bypass exists in baserCMS. If this vulnerability is exploited, an arbitrary script may be executed in the user's web browser.

## Remediation

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