# CVE-2023-52084: Winter CMS Stored XSS through Backend ColorPicker FormWidget

> Authenticated users can inject malicious scripts via the ColorPicker widget in backend forms, leading to stored XSS attacks.

- **Severity:** Low 2.0 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A: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:** Yes
- **Published:** 28 Dec 2023
- **Updated:** 17 Apr 2025
- **Also known as:** GHSA-43w4-4j3c-jx29

## What is CVE-2023-52084?

CVE-2023-52084 is a low-severity cross-site scripting vulnerability in wintercms winter, published on 28 Dec 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Winter is a free, open-source content management system. Prior to 1.2.4, Users with access to backend forms that include a ColorPicker FormWidget can provide a value that would then be rendered unescaped in the backend form, potentially allowing for a stored XSS attack. This issue has been patched in v1.2.4.

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

## Which versions are affected by CVE-2023-52084?

2 open source packages ship an affected version, including winter/wn-backend-module. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `winter/wn-backend-module` | Packagist | All versions | 1.2.4 |
| `winter/wn-backend-module` | Packagist | All versions | 1.2.4 |

Products: Wintercms Winter.

## How do I fix CVE-2023-52084?

Upgrade winter/wn-backend-module to 1.2.4 or later.

## Is CVE-2023-52084 being exploited?

There is no known exploitation of CVE-2023-52084 in the wild and no public exploit code.

## Other vulnerabilities in wintercms winter

- [CVE-2026-27591](https://insights.sbomify.com/CVE-2026-27591/): Winter: Privilege escalation by authenticated backend users (critical 10.0)
- [CVE-2024-54149](https://insights.sbomify.com/CVE-2024-54149/): Winter CMS Modules allows a sandbox bypass in Twig templates leading to data modification and deletion (high 8.5)
- [CVE-2022-39357](https://insights.sbomify.com/CVE-2022-39357/): Winter vulnerable to Prototype Pollution in Snowboard framework (high 8.1)
- [CVE-2024-29686](https://insights.sbomify.com/CVE-2024-29686/): Winter CMS Server-Side Template Injection (SSTI) vulnerability (high 7.2)
- [CVE-2023-52085](https://insights.sbomify.com/CVE-2023-52085/): Winter CMS Local File Inclusion through Server Side Template Injection (low 3.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-52084 and fix it if it is affected.

What it is: CVE-2023-52084 is a low-severity cross-site scripting vulnerability in wintercms winter, published on 28 Dec 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-52084 in the wild and no public exploit code.

Affected packages and fixed versions:
- winter/wn-backend-module (Packagist): affected all versions; fixed in 1.2.4
- winter/wn-backend-module (Packagist): affected all versions; fixed in 1.2.4

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-2023-52084/ (Markdown: https://insights.sbomify.com/CVE-2023-52084/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-52084
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-52084
- OSV: https://osv.dev/vulnerability/CVE-2023-52084

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-52084/
Summaries are generated and may contain mistakes; the official description above is the record.