# CVE-2022-1756: Newsletter < 7.4.5 - Reflected Cross-Site Scripting

> Reflected XSS in Newsletter plugin allows attackers to execute scripts in admin pages via unsanitized request URIs.

- **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:** 13 Jun 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-mg6c-vwvq-75r2

## What is CVE-2022-1756?

CVE-2022-1756 is a medium-severity cross-site scripting vulnerability in Unknown Newsletter – Send awesome emails from WordPress, published on 13 Jun 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

The Newsletter WordPress plugin before 7.4.5 does not sanitize and escape the $_SERVER['REQUEST_URI'] before echoing it back in admin pages. Although this uses addslashes, and most modern browsers automatically URLEncode requests, this is still vulnerable to Reflected XSS in older browsers such as Internet Explorer 9 or below.

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

## Which versions are affected by CVE-2022-1756?

It affects 1 product.


Products: Thenewsletterplugin Newsletter.

## How do I fix CVE-2022-1756?

No fix has been published for CVE-2022-1756 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-1756 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-1756 exists.

Public exploit code:

- Newsletter < 7.4.5 - Cross-Site Scripting (nuclei): http/cves/2022/CVE-2022-1756.yaml

## Other vulnerabilities in Unknown Newsletter – Send awesome emails from WordPress

- [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-2023-27922](https://insights.sbomify.com/CVE-2023-27922/): Cross-site scripting in Newsletter (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-2022-1756 and fix it if it is affected.

What it is: CVE-2022-1756 is a medium-severity cross-site scripting vulnerability in Unknown Newsletter – Send awesome emails from WordPress, published on 13 Jun 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-1756 exists.

Affected product: Unknown Newsletter – Send awesome emails from WordPress. 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-2022-1756/ (Markdown: https://insights.sbomify.com/CVE-2022-1756/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-1756
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-1756
- OSV: https://osv.dev/vulnerability/CVE-2022-1756

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-1756/
Summaries are generated and may contain mistakes; the official description above is the record.