CVE-2021-32605Public exploitNetwork attack vector

Unauthenticated command execution via search template injection

Published May 11, 2021 · Updated Aug 3, 2024

OS command injection in zzzcms zzzphp before 2.0.4 allows remote attackers to execute commands through the search endpoint. The parserIfLabel search-template processor accepts the user-supplied keys parameter as an if/end if template expression without proper validation, allowing embedded shell syntax to reach command execution. Authentication is not required, and successful exploitation runs commands in the web server's security context, enabling compromise of its data and service.

CVSS severity9.8
Critical
EPSS probability3.79%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in zzzcms zzzphp before 2.0.4 allows remote attackers to execute commands through the search endpoint. The parserIfLabel search-template processor accepts the user-supplied keys parameter as an if/end if template expression without proper validation, allowing embedded shell syntax to reach command execution. Authentication is not required, and successful exploitation runs commands in the web server's security context, enabling compromise of its data and service.

The record

CVE
CVE-2021-32605
Published
May 11, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

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 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

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

Technologies

Your stack

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Your stack

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