---
id: CVE-2020-35275
title: Coastercms v5.8.18 is affected by cross-site Scripting (XSS)
summary: >-
  Coastercms v5.8.18 is affected by cross-site Scripting (XSS). A user can steal
  a cookie and make the user redirect to any malicious website because it is
  trigged on the main home page of the product/application.
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: coastercms
product: coastercms
affected:
  - coastercms = 5.8.18
published: '2020-12-21'
updated: '2026-07-05'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2020-35275'
references:
  - url: 'http://demo.coastercms.org/admin/home'
    label: cve@mitre.org
  - url: 'http://demo.coastercms.org/admin/login'
    label: cve@mitre.org
  - url: 'http://demo.coastercms.org/homepage/blog'
    label: cve@mitre.org
  - url: 'https://www.exploit-db.com/exploits/49181'
    label: cve@mitre.org
  - url: 'http://coastercms.com'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://demo.coastercms.org/admin/home'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://demo.coastercms.org/admin/login'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://demo.coastercms.org/homepage/blog'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.exploit-db.com/exploits/49181'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.01069
epssPercentile: 0.63365
ingestedAt: '2026-07-05T00:59:25.585Z'
---

## Overview

Coastercms v5.8.18 is affected by cross-site Scripting (XSS). A user can steal a cookie and make the user redirect to any malicious website because it is trigged on the main home page of the product/application.

## Affected

- `coastercms = 5.8.18`

## Remediation

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