What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-10 · updated 2026-10-06
• Weakness: CWE-94

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

• ImpressCMS: 1.4.2

References

• https://www.exploit-db.com/exploits/50298
• https://www.impresscms.org/
• https://www.impresscms.org/modules/downloads/
• https://www.vulncheck.com/advisories/impresscms-remote-code-execution-via-autotasks

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