# CVE-2023-27922: Cross-site scripting in Newsletter

> Remote unauthenticated attackers can inject arbitrary scripts via a cross-site scripting vulnerability in the Newsletter plugin.

- **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:** 23 May 2023
- **Updated:** 17 Jan 2025
- **Also known as:** GHSA-cfjw-jcv7-35gw

## What is CVE-2023-27922?

CVE-2023-27922 is a medium-severity cross-site scripting vulnerability in Stefano Lissa & The Newsletter Team Newsletter, published on 23 May 2023. 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

Cross-site scripting vulnerability in Newsletter versions prior to 7.6.9 allows a remote unauthenticated attacker to inject an arbitrary script.

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

## Which versions are affected by CVE-2023-27922?

It affects 1 product.


Products: Thenewsletterplugin Newsletter.

## How do I fix CVE-2023-27922?

No fix has been published for CVE-2023-27922 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-27922 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-27922 exists.

Public exploit code:

- Newsletter < 7.6.9 - Cross-Site Scripting (nuclei): http/cves/2023/CVE-2023-27922.yaml

## Other vulnerabilities in Stefano Lissa & The Newsletter Team Newsletter

- [CVE-2020-35933](https://insights.sbomify.com/CVE-2020-35933/): Cross-site scripting in n/a (medium 6.5)
- [CVE-2024-5317](https://insights.sbomify.com/CVE-2024-5317/): Newsletter <= 8.3.4 - Unauthenticated Stored Cross-Site Scripting via np1 (medium 6.4)
- [CVE-2023-4772](https://insights.sbomify.com/CVE-2023-4772/): Newsletter <= 7.8.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode (medium 6.4)
- [CVE-2022-1756](https://insights.sbomify.com/CVE-2022-1756/): Newsletter < 7.4.5 - Reflected Cross-Site Scripting (medium 6.1)
- [CVE-2025-3581](https://insights.sbomify.com/CVE-2025-3581/): Newsletter < 8.8.5 - Admin+ Stored XSS via Widget (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-27922 and fix it if it is affected.

What it is: CVE-2023-27922 is a medium-severity cross-site scripting vulnerability in Stefano Lissa & The Newsletter Team Newsletter, published on 23 May 2023. 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-2023-27922 exists.

Affected product: Stefano Lissa & The Newsletter Team Newsletter. 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-2023-27922/ (Markdown: https://insights.sbomify.com/CVE-2023-27922/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-27922
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-27922
- OSV: https://osv.dev/vulnerability/CVE-2023-27922

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-27922/
Summaries are generated and may contain mistakes; the official description above is the record.