# CVE-2022-4822: FlatPress Setup main.lib.php cross site scripting

> Remote attackers can inject malicious scripts into FlatPress setup pages, 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:** 28 Dec 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-mj8c-5prm-5hh6

## What is CVE-2022-4822?

CVE-2022-4822 is a low-severity cross-site scripting vulnerability in FlatPress, published on 28 Dec 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

A vulnerability, which was classified as problematic, has been found in FlatPress. This issue affects some unknown processing of the file setup/lib/main.lib.php of the component Setup. The manipulation leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 5f23b4c2eac294cc0ba5e541f83a6f8a26f9fed1. It is recommended to apply a patch to fix this issue. The identifier VDB-217001 was assigned to this vulnerability.

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

## Which versions are affected by CVE-2022-4822?

It affects 1 product.


Products: Flatpress Flatpress.

## How do I fix CVE-2022-4822?

No fix has been published for CVE-2022-4822 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-4822 being exploited?

There is no known exploitation of CVE-2022-4822 in the wild and no public exploit code.

## Other vulnerabilities in FlatPress

- [CVE-2022-4606](https://insights.sbomify.com/CVE-2022-4606/): PHP Remote File Inclusion in flatpressblog/flatpress (high 8.8)
- [CVE-2020-22761](https://insights.sbomify.com/CVE-2020-22761/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2024-4023](https://insights.sbomify.com/CVE-2024-4023/): Stored XSS in flatpressblog/flatpress (high 8.1)
- [CVE-2024-41290](https://insights.sbomify.com/CVE-2024-41290/): Information disclosure in n/a (high 8.1)
- [CVE-2023-1104](https://insights.sbomify.com/CVE-2023-1104/): Cross-site Scripting (XSS) - Stored in flatpressblog/flatpress (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-4822 and fix it if it is affected.

What it is: CVE-2022-4822 is a low-severity cross-site scripting vulnerability in FlatPress, published on 28 Dec 2022. 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-2022-4822 in the wild and no public exploit code.

Affected product: FlatPress. 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-2022-4822/ (Markdown: https://insights.sbomify.com/CVE-2022-4822/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-4822
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-4822
- OSV: https://osv.dev/vulnerability/CVE-2022-4822

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-4822/
Summaries are generated and may contain mistakes; the official description above is the record.