---
id: CVE-2018-25349
title: >-
  userSpice 4.3.24 contains a cross-site scripting vulnerability that allows
  attackers to inject malicious scripts through the X-Forwarded-For HTTP header
summary: >-
  userSpice 4.3.24 contains a cross-site scripting vulnerability that allows
  attackers to inject malicious scripts through the X-Forwarded-For HTTP header.
  Attackers can send crafted requests to the backup.php endpoint with XSS
  payloads in…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-05-23'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T22:10:00.247'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2018-25349'
references:
  - url: 'https://www.exploit-db.com/exploits/44871'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/userspice-cross-site-scripting-via-x-forwarded-for-header
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00155
epssPercentile: 0.03998
ingestedAt: '2026-10-06T22:23:15.924Z'
---

## Overview

userSpice 4.3.24 contains a cross-site scripting vulnerability that allows attackers to inject malicious scripts through the X-Forwarded-For HTTP header. Attackers can send crafted requests to the backup.php endpoint with XSS payloads in the X-Forwarded-For header that execute when administrators visit the audit log page.

## Remediation

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