# CVE-2025-34030: sar2html OS Command Injection

> Remote unauthenticated attackers can execute arbitrary OS commands via the plot parameter in sar2html, leading to full system compromise.

- **Severity:** Critical 10.0 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Jun 2025
- **Updated:** 7 Apr 2026
- **Also known as:** GHSA-f9p6-9wvr-9crm

## What is CVE-2025-34030?

CVE-2025-34030 is a critical command injection vulnerability in sar2html, published on 20 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An OS command injection vulnerability exists in sar2html version 3.2.2 and prior via the plot parameter in index.php. The application fails to sanitize user-supplied input before using it in a system-level context. Remote, unauthenticated attackers can inject shell commands by appending them to the plot parameter (e.g., ?plot=;id) in a crafted GET request. The output of the command is displayed in the application's interface after interacting with the host selection UI. Successful exploitation leads to arbitrary command execution on the underlying system. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-04 UTC.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2025-34030?


## How do I fix CVE-2025-34030?

No fix has been published for CVE-2025-34030 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-34030 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34030 exists.

Public exploit code:

- PoC for CVE-2025-34030 sar2html 'plot' parameter RCE (github_poc): https://github.com/HackerTyperAbuser/CVE-2025-34030-PoC
- sar2html <=3.2.2 Plot Parameter - Remote Code Execution (nuclei): http/cves/2025/CVE-2025-34030.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-34030 and fix it if it is affected.

What it is: CVE-2025-34030 is a critical command injection vulnerability in sar2html, published on 20 Jun 2025. 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-2025-34030 exists.

Affected product: sar2html. 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-2025-34030/ (Markdown: https://insights.sbomify.com/CVE-2025-34030/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-34030
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-34030
- OSV: https://osv.dev/vulnerability/CVE-2025-34030

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-34030/
Summaries are generated and may contain mistakes; the official description above is the record.