VULNERABILITY INTELLIGENCE

CVE-2021-42654

CVSS score9.8 CRITICAL

EPSS probability1.81%

CISA KEVNot currently listed

Published2022-05-24

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

SiteServer CMS < V5.1 is affected by an unrestricted upload of a file with dangerous type (getshell), which could be used to execute arbitrary code.

Weakness classification

CWE-434: Unrestricted Upload of File with Dangerous Type

Primary references

cve@mitre.org — Product, Third Party Advisory
cve@mitre.org — Issue Tracking, Third Party Advisory
cve@mitre.org — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Product, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory