# CVE-2023-6303: CSZCMS Site Settings Page cross site scripting

> Attackers can inject malicious scripts via the Site Settings page, potentially leading to session hijacking or code execution.

- **Severity:** Low 2.4 (`CVSS:3.1/AV:N/AC:L/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:** No
- **Published:** 27 Nov 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-4rp6-9jgj-798p

## What is CVE-2023-6303?

CVE-2023-6303 is a low-severity cross-site scripting vulnerability in CSZCMS, published on 27 Nov 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

A vulnerability was found in CSZCMS 1.3.0. It has been classified as problematic. This affects an unknown part of the file /admin/settings/ of the component Site Settings Page. The manipulation of the argument Additional Meta Tag with the input <svg><animate onbegin=alert(1) attributeName=x dur=1s> leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-246129 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

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

## Which versions are affected by CVE-2023-6303?

It affects 1 product.


Products: Cskaza Cszcms.

## How do I fix CVE-2023-6303?

No fix has been published for CVE-2023-6303 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-6303 being exploited?

There is no known exploitation of CVE-2023-6303 in the wild and no public exploit code.

## Other vulnerabilities in CSZCMS

- [CVE-2023-34545](https://insights.sbomify.com/CVE-2023-34545/): SQL injection in n/a (critical 9.8)
- [CVE-2021-46377](https://insights.sbomify.com/CVE-2021-46377/): SQL injection in n/a (critical 9.8)
- [CVE-2020-36136](https://insights.sbomify.com/CVE-2020-36136/): SQL injection in n/a (high 7.5)
- [CVE-2023-41436](https://insights.sbomify.com/CVE-2023-41436/): Cross-site scripting in n/a (medium 5.4)
- [CVE-2023-6302](https://insights.sbomify.com/CVE-2023-6302/): CSZCMS File Manager Page templates permission (medium 4.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-6303 and fix it if it is affected.

What it is: CVE-2023-6303 is a low-severity cross-site scripting vulnerability in CSZCMS, published on 27 Nov 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-2023-6303 in the wild and no public exploit code.

Affected product: CSZCMS. 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-2023-6303/ (Markdown: https://insights.sbomify.com/CVE-2023-6303/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-6303
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-6303
- OSV: https://osv.dev/vulnerability/CVE-2023-6303

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-6303/
Summaries are generated and may contain mistakes; the official description above is the record.