CVE-2021-47938
ImpressCMS 1.4.2 Remote Code Execution via Autotasks
Description
ImpressCMS 1.4.2 contains a remote code execution vulnerability in the autotasks administrative interface that allows authenticated attackers to execute arbitrary PHP code by injecting malicious code into the sat_code parameter. Attackers can authenticate, submit a POST request to /modules/system/admin.php?fct=autotasks&op=mod with crafted sat_code containing PHP commands, which creates an executable file that accepts arbitrary commands via GET parameters.
INFO
Published Date :
May 10, 2026, 1:16 p.m.
Last Modified :
July 25, 2026, 10:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update ImpressCMS to the latest version.
- Review and secure administrative interfaces.
- Sanitize all user inputs.
- Restrict access to administrative functions.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47938.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47938 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47938
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47938 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47938 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Jul. 25, 2026
Action Type Old Value New Value Changed Translation Title: ImpressCMS de Impresscms, Description: ImpressCMS 1.4.2 contiene una vulnerabilidad de ejecución remota de código en la interfaz administrativa de autotareas que permite a atacantes autenticados ejecutar código PHP arbitrario inyectando código malicioso en el parámetro sat_code. Los atacantes pueden autenticarse, enviar una solicitud POST a /modules/system/admin.php?fct=autotasks&op=mod con un sat_code manipulado que contenga comandos PHP, lo que crea un archivo ejecutable que acepta comandos arbitrarios a través de parámetros GET. Title: ImpressCMS de Impresscms, Description: ImpressCMS 1.4.2 contiene una vulnerabilidad de ejecución remota de código en la interfaz administrativa de autotareas que permite a atacantes autenticados ejecutar código PHP arbitrario inyectando código malicioso en el parámetro sat_code. Los atacantes pueden autenticarse, enviar una solicitud POST a /modules/system/admin.php?fct=autotasks&op=mod con un sat_code manipulado que contenga comandos PHP, lo que crea un archivo ejecutable que acepta comandos arbitrarios a través de parámetros GET. -
CVE Translated by [email protected]
Jul. 24, 2026
Action Type Old Value New Value Added Translation Title: ImpressCMS de Impresscms, Description: ImpressCMS 1.4.2 contiene una vulnerabilidad de ejecución remota de código en la interfaz administrativa de autotareas que permite a atacantes autenticados ejecutar código PHP arbitrario inyectando código malicioso en el parámetro sat_code. Los atacantes pueden autenticarse, enviar una solicitud POST a /modules/system/admin.php?fct=autotasks&op=mod con un sat_code manipulado que contenga comandos PHP, lo que crea un archivo ejecutable que acepta comandos arbitrarios a través de parámetros GET. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Impresscms', 'product': 'ImpressCMS', 'versions': [{'status': 'affected', 'version': '1.4.2'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2021-47938', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-05-11T11:21:56.282230Z'} -
New CVE Received by [email protected]
May. 10, 2026
Action Type Old Value New Value Added Description ImpressCMS 1.4.2 contains a remote code execution vulnerability in the autotasks administrative interface that allows authenticated attackers to execute arbitrary PHP code by injecting malicious code into the sat_code parameter. Attackers can authenticate, submit a POST request to /modules/system/admin.php?fct=autotasks&op=mod with crafted sat_code containing PHP commands, which creates an executable file that accepts arbitrary commands via GET parameters. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-94 Added Reference https://www.exploit-db.com/exploits/50298 Added Reference https://www.impresscms.org/ Added Reference https://www.impresscms.org/modules/downloads/ Added Reference https://www.vulncheck.com/advisories/impresscms-remote-code-execution-via-autotasks