# CVE-2022-50906: e107 CMS v3.2.1 - Admin Upload Restriction Bypass + Stored XSS

> Authenticated administrators can bypass upload restrictions to inject malicious SVG files, leading to stored XSS and arbitrary script execution.

- **Severity:** Medium 4.8 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 13 Jan 2026
- **Updated:** 7 Apr 2026
- **Also known as:** GHSA-h84q-rj7p-53m3

## What is CVE-2022-50906?

CVE-2022-50906 is a medium-severity cross-site scripting vulnerability in E107 E107, published on 13 Jan 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

e107 CMS 3.2.1 contains an upload restriction bypass vulnerability that allows authenticated administrators to upload malicious SVG files through the media manager. Attackers with admin privileges can exploit this vulnerability to upload SVG files with embedded cross-site scripting (XSS) payloads that can execute arbitrary scripts when viewed.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2022-50906?

It affects 1 product.


Products: E107 E107.

## How do I fix CVE-2022-50906?

No fix has been published for CVE-2022-50906 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-50906 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-50906 exists.

## Other vulnerabilities in E107 E107

- [CVE-2021-27885](https://insights.sbomify.com/CVE-2021-27885/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2016-10753](https://insights.sbomify.com/CVE-2016-10753/): Deserialization in n/a (high 8.8)
- [CVE-2018-15901](https://insights.sbomify.com/CVE-2018-15901/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2022-50916](https://insights.sbomify.com/CVE-2022-50916/): e107 CMS v3.2.1 - Upload restriction bypass (Authenticated [Admin])+ Server file override (high 8.7)
- [CVE-2022-50907](https://insights.sbomify.com/CVE-2022-50907/): e107 CMS v3.2.1 - Admin Upload Restriction Bypass + RCE (high 8.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-50906 and fix it if it is affected.

What it is: CVE-2022-50906 is a medium-severity cross-site scripting vulnerability in E107 E107, published on 13 Jan 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-50906 exists.

Affected product: E107 E107. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2022-50906/ (Markdown: https://insights.sbomify.com/CVE-2022-50906/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-50906
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-50906
- OSV: https://osv.dev/vulnerability/CVE-2022-50906

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-50906/
Summaries are generated and may contain mistakes; the official description above is the record.