High severity8.8NVD Advisory· Published May 17, 2022· Updated Jun 17, 2026

CVE-2021-42643

Description

cmseasy V7.7.5_20211012 is affected by an arbitrary file write vulnerability. Through this vulnerability, a PHP script file is written to the website server, and accessing this file can lead to a code execution vulnerability.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Cmseasy/Cmseasy3 versions
cpe:2.3:a:cmseasy:cmseasy:7.7.5_20211012:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:cmseasy:cmseasy:7.7.5_20211012:*:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: 7.7.5_20211012

Patches

Vulnerability mechanics

References

jdr2021.github.io/2021/10/14/CmsEasy_7.7.5_20211012%E5%AD%98%E5%9C%A8%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E5%86%99%E5%85%A5%E5%92%8C%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96%E6%BC%8F%E6%B4%9E/nvdExploitThird Party Advisory

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cvss	0.572
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000