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CVE-2025-34030: sar2html OS Command Injection

• Severity: critical (CVSS 10.0 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 52.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-06-20 · updated 2026-06-17
• Weakness: CWE-78

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.

Affected products

• sar2html: through 3.2.2

References

• https://github.com/cemtan/sar2html
• https://vulncheck.com/advisories/sar2html-command-injection
• https://www.exploit-db.com/exploits/47204
• https://www.fortiguard.com/encyclopedia/ips/48624

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