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TI-2021-22370 Aliases CVE-2021-47753GHSA-q6vq-8ww2-4v69

phpKF CMS 3.00 Beta y6 - Remote Code Execution (RCE) (Unauthenticated)

Priority HIGH 81CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
None
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-434.

Summary

phpKF CMS 3.00 Beta y6 contains an unauthenticated file upload vulnerability that allows remote attackers to execute arbitrary code by bypassing file extension checks. Attackers can upload a PHP file disguised as a PNG, rename it, and execute system commands through a crafted web shell parameter.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00781 56th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
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
PhpkfphpKF CMS3.00—No fix listedCNA
  • phpKF CMS VendorPhpkf Affected 3.00 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:phpkf:cms:3.00:beta_y6:*:*:*:*:*:*3.00 beta_y6VulnerablePhpkf
  • cpe:2.3:a:phpkf:cms:3.00:beta_y6:*:*:*:*:*:* Versions 3.00 beta_y6 Vulnerable ·Phpkf

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-47753
  2. 2026-10-03 Alias added: GHSA-q6vq-8ww2-4v69

References

Exploit 1

Other 2

Sources

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