---
id: CVE-2022-28118
title: >-
  SiteServer CMS v7.x allows attackers to execute arbitrary code via a crafted
  plug-in.
summary: >-
  SiteServer CMS v7.x allows attackers to execute arbitrary code via a crafted
  plug-in.
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
vendor: sscms
product: siteserver_cms
affected:
  - 'siteserver_cms >= 7.0.0, <= 7.1.2'
published: '2022-05-03'
updated: '2026-07-05'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-28118'
references:
  - url: 'https://github.com/Richard-Tang/SSCMS-PluginShell/blob/main/Detail.md'
    label: cve@mitre.org
  - url: 'https://github.com/siteserver/cms'
    label: cve@mitre.org
  - url: 'https://github.com/siteserver/cms/issues/3386'
    label: cve@mitre.org
  - url: 'http://siteserver.com'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/Richard-Tang/SSCMS-PluginShell/blob/main/Detail.md'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/siteserver/cms'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/siteserver/cms/issues/3386'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - exploit-available
epss: 0.02771
epssPercentile: 0.85719
ingestedAt: '2026-07-06T17:03:24.350Z'
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/Richard-Tang/SSCMS-PluginShell'
  checkedAt: '2026-09-26T09:05:27.870Z'
exploitAvailable: true
---

## Overview

SiteServer CMS v7.x allows attackers to execute arbitrary code via a crafted plug-in.

## Affected

- `siteserver_cms >= 7.0.0, <= 7.1.2`

## Remediation

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