# CVE-2022-29436: Cross-site scripting in Code Snippets Extended (WordPress plugin)

> Attackers can inject persistent scripts via CSRF, potentially executing code or taking over accounts in WordPress installations using the Code Snippets Extended plugin.

- **Severity:** Medium 4.7 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/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:** 17 May 2022
- **Updated:** 28 Apr 2026
- **Also known as:** GHSA-hr68-2776-7q9f

## What is CVE-2022-29436?

CVE-2022-29436 is a medium-severity cross-site scripting vulnerability in Alexander Stokmann Code Snippets Extended (WordPress plugin), published on 17 May 2022. 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

Persistent Cross-Site Scripting (XSS) vulnerability in Alexander Stokmann's Code Snippets Extended plugin <= 1.4.7 on WordPress via Cross-Site Request Forgery (vulnerable parameters &title, &snippet_code).

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2022-29436?

It affects 1 product.


Products: Code Snippets Extended Project Code Snippets Extended.

## How do I fix CVE-2022-29436?

No fix has been published for CVE-2022-29436 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-29436 being exploited?

There is no known exploitation of CVE-2022-29436 in the wild and no public exploit code.

## Other vulnerabilities in Alexander Stokmann Code Snippets Extended (WordPress plugin)

- [CVE-2022-29429](https://insights.sbomify.com/CVE-2022-29429/): Cross-site request forgery in Code Snippets Extended (WordPress plugin) (high 8.8)
- [CVE-2022-29435](https://insights.sbomify.com/CVE-2022-29435/): WordPress Code Snippets Extended plugin <= 1.4.7 - Cross-Site Request Forgery (CSRF) vulnerability (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-29436 and fix it if it is affected.

What it is: CVE-2022-29436 is a medium-severity cross-site scripting vulnerability in Alexander Stokmann Code Snippets Extended (WordPress plugin), published on 17 May 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-29436 in the wild and no public exploit code.

Affected product: Alexander Stokmann Code Snippets Extended (WordPress plugin). 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-2022-29436/ (Markdown: https://insights.sbomify.com/CVE-2022-29436/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-29436
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-29436
- OSV: https://osv.dev/vulnerability/CVE-2022-29436

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-29436/
Summaries are generated and may contain mistakes; the official description above is the record.