CVE-2011-4943Public exploitNetwork attack vector

Unauthenticated code execution via eval-built class name

Published Jan 22, 2020 · Updated Aug 7, 2024

Code injection in ImpressPages CMS 1.0.12 allows remote attackers to execute arbitrary PHP code through a crafted web request. Content management actions.php concatenates the cm_group and cm_name request parameters into an eval-created class name without validating them against installed modules. No authentication or user interaction is required, and successful exploitation runs code with the web application's privileges.

CVSS severity9.8
Critical
EPSS probability1.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in ImpressPages CMS 1.0.12 allows remote attackers to execute arbitrary PHP code through a crafted web request. Content management actions.php concatenates the cm_group and cm_name request parameters into an eval-created class name without validating them against installed modules. No authentication or user interaction is required, and successful exploitation runs code with the web application's privileges.

The record

CVE
CVE-2011-4943
Published
Jan 22, 2020
Updated
Aug 7, 2024
Vendor
ImpressPages
Product
ImpressPages CMS
Classifications
CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 22, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 7, 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?

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

  1. Affected versionversion=before v1.0.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ImpressPages · ImpressPages CMSversion=before v1.0.13

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

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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