# CVE-2023-40819: Cross-site scripting in n/a

> ID4Portais fails to sanitize the message parameter, allowing attackers to inject HTML and potentially execute scripts in user sessions.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 6 Aug 2024
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-4r77-5qxj-vjjj

## What is CVE-2023-40819?

CVE-2023-40819 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Aug 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

ID4Portais in version < V.2022.837.002a returns message parameter unsanitized in the response, resulting in a HTML Injection vulnerability.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-233 (Improper Handling of Parameters)

## Which versions are affected by CVE-2023-40819?

It affects 1 product.


Products: Devlop.systems Id4portais.

## How do I fix CVE-2023-40819?

No fix has been published for CVE-2023-40819 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-40819 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-40819 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-40819 and fix it if it is affected.

What it is: CVE-2023-40819 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Aug 2024. An attacker can exploit it over the internet without logging in, 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-2023-40819 exists.

Affected product: n/a. 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-2023-40819/ (Markdown: https://insights.sbomify.com/CVE-2023-40819/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-40819
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-40819
- OSV: https://osv.dev/vulnerability/CVE-2023-40819

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-40819/
Summaries are generated and may contain mistakes; the official description above is the record.