CVE-2025-34030Known exploitationPublic exploitNetwork attack vector

Unauthenticated command execution via plot parameter

Published Jun 20, 2025 · Updated Apr 7, 2026

OS command injection in sar2html 3.2.2 and earlier allows remote attackers to execute arbitrary commands through the plot parameter. The index.php handler places the unvalidated plot value into a system-level command, so a semicolon-delimited suffix is interpreted by the shell. No authentication is required; command output appears after the host selection control is used, and commands run with the web application's privileges.

CVSS severity10.0
Critical
EPSS probability60.44%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in sar2html 3.2.2 and earlier allows remote attackers to execute arbitrary commands through the plot parameter. The index.php handler places the unvalidated plot value into a system-level command, so a semicolon-delimited suffix is interpreted by the shell. No authentication is required; command output appears after the host selection control is used, and commands run with the web application's privileges.

The record

CVE
CVE-2025-34030
Published
Jun 20, 2025
Updated
Apr 7, 2026
Vendor
sar2html
Product
sar2html
Classifications
CWE-78, CAPEC-88, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 4, 2025Exploitation reportedShadowserver observed exploitation
  2. Jun 20, 2025CVE publishedPublication date reported by the CVE source.
  3. Apr 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

sar2html · sar2htmlversion=0 <=3.2.2

Published CVSS scores

10.0VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC-88OS Command Injection
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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