# CVE-2025-4857: Newsletters <= 4.9.9.9 - Authenticated (Administrator+) Local File Inclusion

> Authenticated administrators can exploit a local file inclusion vulnerability in the Newsletters plugin to execute arbitrary PHP code and read sensitive data.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 31 May 2025
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-2qq8-vcw7-37m7

## What is CVE-2025-4857?

CVE-2025-4857 is a high-severity path traversal vulnerability in contrid Newsletters, published on 31 May 2025. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The Newsletters plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.9.9.9 via the 'file' parameter. This makes it possible for authenticated attackers, with Administrator-level access and above, to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2025-4857?

It affects 1 product.


Products: Tribulant Newsletters.

## How do I fix CVE-2025-4857?

No fix has been published for CVE-2025-4857 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-4857 being exploited?

There is no known exploitation of CVE-2025-4857 in the wild and no public exploit code.

## Other vulnerabilities in contrid Newsletters

- [CVE-2018-20987](https://insights.sbomify.com/CVE-2018-20987/): Deserialization in n/a (critical 9.8)
- [CVE-2024-8247](https://insights.sbomify.com/CVE-2024-8247/): Newsletters <= 4.9.9.2 - Authenticated Privilege Escalation (high 8.8)
- [CVE-2019-14788](https://insights.sbomify.com/CVE-2019-14788/): Path traversal in n/a (high 8.8)
- [CVE-2023-4797](https://insights.sbomify.com/CVE-2023-4797/): Newsletter Lite < 4.9.3 - Admin+ Command Injection (high 7.2)
- [CVE-2024-35718](https://insights.sbomify.com/CVE-2024-35718/): WordPress Newsletters plugin <= 4.9.5 - Reflected Cross Site Scripting (XSS) vulnerability (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-4857 and fix it if it is affected.

What it is: CVE-2025-4857 is a high-severity path traversal vulnerability in contrid Newsletters, published on 31 May 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-4857 in the wild and no public exploit code.

Affected product: contrid Newsletters. 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-2025-4857/ (Markdown: https://insights.sbomify.com/CVE-2025-4857/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-4857
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-4857
- OSV: https://osv.dev/vulnerability/CVE-2025-4857

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-4857/
Summaries are generated and may contain mistakes; the official description above is the record.