# CVE-2026-34787: Emlog: Local File Inclusion in plugin.php via unsanitized plugin parameter

> Attackers can execute arbitrary code on Emlog servers by exploiting a Local File Inclusion vulnerability in the plugin management interface.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Apr 2026
- **Updated:** 6 Apr 2026
- **Also known as:** GHSA-7mvq-qj5x-5phm

## What is CVE-2026-34787?

CVE-2026-34787 is a medium-severity path traversal vulnerability in Emlog Emlog, published on 3 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Emlog is an open source website building system. In versions 2.6.2 and prior, a Local File Inclusion (LFI) vulnerability exists in admin/plugin.php at line 80. The $plugin parameter from the GET request is directly used in a require_once path without proper sanitization. If the CSRF token check can be bypassed (see potential bypass conditions), an attacker can include arbitrary PHP files from the server filesystem, leading to code execution. At time of publication, there are no publicly available patches.

Weakness: CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program)

## Which versions are affected by CVE-2026-34787?

It affects 1 product.


Products: Emlog Emlog.

## How do I fix CVE-2026-34787?

No fix has been published for CVE-2026-34787 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-34787 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34787 exists.

## Other vulnerabilities in Emlog Emlog

- [CVE-2025-29401](https://insights.sbomify.com/CVE-2025-29401/): File upload in n/a (critical 9.8)
- [CVE-2025-25783](https://insights.sbomify.com/CVE-2025-25783/): File upload in n/a (critical 9.8)
- [CVE-2023-44973](https://insights.sbomify.com/CVE-2023-44973/): File upload in n/a (critical 9.8)
- [CVE-2023-44974](https://insights.sbomify.com/CVE-2023-44974/): File upload in n/a (critical 9.8)
- [CVE-2023-43291](https://insights.sbomify.com/CVE-2023-43291/): Deserialization in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-34787 and fix it if it is affected.

What it is: CVE-2026-34787 is a medium-severity path traversal vulnerability in Emlog Emlog, published on 3 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34787 exists.

Affected product: Emlog Emlog. 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-2026-34787/ (Markdown: https://insights.sbomify.com/CVE-2026-34787/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-34787
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-34787
- OSV: https://osv.dev/vulnerability/CVE-2026-34787

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-34787/
Summaries are generated and may contain mistakes; the official description above is the record.