Vulnerability · Published May 24, 2022 · Assigned by mitre

CVE-2021-42654

Critical 9.8

In plain English

A critical-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities).

Severity (CVSS NVD)9.8Critical

Exploit odds (30 days)1.8%top 21.3% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/siteserver/cms x_refsource_MISC
https://github.com/siteserver/cms/issues/3236 x_refsource_MISC
https://github.com/siteserver/cms/releases/download/siteserver-dev-v5.0.92/siteserver_install.zip x_refsource_MISC