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Critical severity9.8NVD Advisory· Published Jan 15, 2026· Updated Jun 17, 2026

CVE-2021-47753

CVE-2021-47753

Description

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.

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Affected products

3
  • Phpkf/CMS
    cpe:2.3:a:phpkf:cms:3.00:beta_y6:*:*:*:*:*:*
  • Phpkf/Phpkfllm-fuzzy2 versions
    3.00 Beta y6+ 1 more
    • (no CPE)range: 3.00 Beta y6
    • (no CPE)range: 3.00

Patches

Vulnerability mechanics

References

3

News mentions

0

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