# CVE-2022-28118: RCE in SiteServer CMS

> Attackers can execute arbitrary code in SiteServer CMS by uploading a crafted plug-in, requiring immediate upgrade.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 May 2022
- **Updated:** 9 Jul 2026
- **Also known as:** GHSA-q469-j32f-h7vm

## What is CVE-2022-28118?

CVE-2022-28118 is a critical code injection vulnerability in n/a, published on 3 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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

## Which versions are affected by CVE-2022-28118?

2 open source packages ship an affected version, including siteserver. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `siteserver` | npm | From 7.0.0 | None |
| `siteserver` | npm | From 7.0.0 | None |

Products: Sscms Siteserver Cms.

## How do I fix CVE-2022-28118?

No fix has been published for CVE-2022-28118 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-28118 being exploited?

There is no known exploitation of CVE-2022-28118 in the wild and no public exploit code.

Public exploit code:

- CVE-2022-28118 (github_poc): https://github.com/Richard-Tang/SSCMS-PluginShell

## Other vulnerabilities in n/a

- [CVE-2022-44298](https://insights.sbomify.com/CVE-2022-44298/): SQL injection in n/a (critical 9.8)
- [CVE-2022-44297](https://insights.sbomify.com/CVE-2022-44297/): SQL injection in n/a (critical 9.8)
- [CVE-2021-42654](https://insights.sbomify.com/CVE-2021-42654/): File upload in n/a (critical 9.8)
- [CVE-2021-42655](https://insights.sbomify.com/CVE-2021-42655/): SQL injection in SiteServer CMS (high 8.8)
- [CVE-2025-45529](https://insights.sbomify.com/CVE-2025-45529/): Path traversal in n/a (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-28118 and fix it if it is affected.

What it is: CVE-2022-28118 is a critical code injection vulnerability in n/a, published on 3 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-28118 in the wild and no public exploit code.

Affected packages and fixed versions:
- siteserver (npm): affected from 7.0.0; no fix listed
- siteserver (npm): affected from 7.0.0; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-28118/ (Markdown: https://insights.sbomify.com/CVE-2022-28118/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-28118
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-28118
- OSV: https://osv.dev/vulnerability/CVE-2022-28118

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-28118/
Summaries are generated and may contain mistakes; the official description above is the record.