# CVE-2026-34228: Emlog: CSRF in Backend Upgrade Interface Leading to Arbitrary Remote SQL Execution and Arbitrary File Write

> An attacker can trick an admin into visiting a malicious link to execute arbitrary SQL and write files via the upgrade interface.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Apr 2026
- **Updated:** 6 Apr 2026
- **Also known as:** GHSA-2rcc-jg83-34vp

## What is CVE-2026-34228?

CVE-2026-34228 is a high-severity vulnerability in Emlog Emlog, published on 3 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Emlog is an open source website building system. Prior to version 2.6.8, the backend upgrade interface accepts remote SQL and ZIP URLs via GET parameters. The server first downloads and executes the SQL file, then downloads the ZIP file and extracts it directly into the web root directory. This process does not validate a CSRF token. Therefore, an attacker only needs to trick an authenticated administrator into visiting a malicious link to achieve arbitrary SQL execution and arbitrary file write. This issue has been patched in version 2.6.8.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2026-34228?

It affects 1 product.


Products: Emlog Emlog.

## How do I fix CVE-2026-34228?

No fix has been published for CVE-2026-34228 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-34228 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34228 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-2026-34228 and fix it if it is affected.

What it is: CVE-2026-34228 is a high-severity vulnerability in Emlog Emlog, published on 3 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34228 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-2026-34228/ (Markdown: https://insights.sbomify.com/CVE-2026-34228/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-34228
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-34228
- OSV: https://osv.dev/vulnerability/CVE-2026-34228

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-34228/
Summaries are generated and may contain mistakes; the official description above is the record.