# CVE-2023-3580: Improper Handling of Additional Special Element in squidex/squidex

> An improper handling of special elements in Squidex allows attackers to execute scripts, potentially compromising user sessions and data.

- **Severity:** Medium 5.4 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Jul 2023
- **Updated:** 30 Oct 2024
- **Also known as:** GHSA-p83x-2782-8pc4

## What is CVE-2023-3580?

CVE-2023-3580 is a medium-severity cross-site scripting vulnerability in squidex/squidex, published on 10 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Improper Handling of Additional Special Element in GitHub repository squidex/squidex prior to 7.4.0.

Weakness: CWE-167 (Improper Handling of Additional Special Element)

## Which versions are affected by CVE-2023-3580?

It affects 1 product.


Products: Squidex.io Squidex.

## How do I fix CVE-2023-3580?

No fix has been published for CVE-2023-3580 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-3580 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-3580 exists.

## Other vulnerabilities in squidex/squidex

- [CVE-2026-24736](https://insights.sbomify.com/CVE-2026-24736/): Squidex has Server-Side Request Forgery (SSRF) Issue in Webhook Configuration (critical 9.1)
- [CVE-2023-46253](https://insights.sbomify.com/CVE-2023-46253/): Remote code execution in Squidex (critical 9.1)
- [CVE-2023-46252](https://insights.sbomify.com/CVE-2023-46252/): Cross-Site Scripting (XSS) via postMessage Handler in Squidex (medium 6.8)
- [CVE-2023-0642](https://insights.sbomify.com/CVE-2023-0642/): Cross-Site Request Forgery (CSRF) in squidex/squidex (medium 6.8)
- [CVE-2023-24278](https://insights.sbomify.com/CVE-2023-24278/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-3580 and fix it if it is affected.

What it is: CVE-2023-3580 is a medium-severity cross-site scripting vulnerability in squidex/squidex, published on 10 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-3580 exists.

Affected product: squidex/squidex. 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-2023-3580/ (Markdown: https://insights.sbomify.com/CVE-2023-3580/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-3580
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-3580
- OSV: https://osv.dev/vulnerability/CVE-2023-3580

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-3580/
Summaries are generated and may contain mistakes; the official description above is the record.