Vulnerability · Published May 10, 2026 · Assigned by VulnCheck

CVE-2021-47938ImpressCMS 1.4.2 Remote Code Execution via Autotasks

High 8.8

In plain English

A high-severity code injection in ImpressCMS from Impresscms. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.6%top 52.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Impresscms	ImpressCMS	1.4.2

Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

ExploitDB-50298 exploit
Official Product Homepage product
Product Reference product
VulnCheck Advisory: ImpressCMS 1.4.2 Remote Code Execution via Autotasks third-party-advisory