Path Traversal in Cmseasy

CVE-2021-42643

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.

Vulnerability class: Path Traversal (Directory Traversal)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.016 (75.5th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-42643: held from 0.016 to 0.016.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

  • Cmseasy — versions 7.7.5_20211012

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-42643?
CVE-2021-42643 is a high-severity vulnerability in Cmseasy, classified under Path Traversal. CVSS score: 8.8/10. Published 2022-05-17.
How severe is CVE-2021-42643?
High severity. CVSS v3 base score is 8.8 out of 10.