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TI-2021-22551 Aliases CVE-2021-47938GHSA-5fc9-c3p9-h598

ImpressCMS 1.4.2 Remote Code Execution via Autotasks

Priority HIGH 73CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00569 47th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ImpressCMSImpressCMS1.4.2—No fix listedCNA
  • ImpressCMS VendorImpressCMS Affected 1.4.2 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-47938
  2. 2026-10-03 Alias added: GHSA-5fc9-c3p9-h598

References

Exploit 1

Other 2

  • TI-2022-26365 ImpressCMS 1.4.4 - Unrestricted File Upload CVSS 4.0CRITICAL 9.3
  • TI-2019-15755 ImpressCMS 1.3.11 SQL Injection via bid Parameter CVSS 4.0HIGH 7.1
  • TI-2021-08319 ImpressCMS before 1.4.3 allows include/findusers.php groups SQL Injection. CVSS 3.1CRITICAL 9.8
  • TI-2023-19270 A cross-site scripting (XSS) vulnerability in ImpressCMS v1.4.5 and before allows… CVSS 3.1MEDIUM 4.8
  • TI-2022-08771 ImpressCMS before 1.4.2 allows unauthenticated remote code execution via .....///… CVSS 3.1CRITICAL 9.8
  • TI-2021-08320 ImpressCMS before 1.4.3 has plugins/preloads/autologin.php type confusion with resultant… CVSS 3.1CRITICAL 9.8
See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences