VulnerabilityModified
CVE-2021-42654
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.
CRITICAL 9.8EPSS 1.70%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.70% probability · 76th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- sscms/siteserver cms
- Source
- cve@mitre.org
References
- https://github.com/siteserver/cmsProduct, Third Party Advisory
- https://github.com/siteserver/cms/issues/3236Issue Tracking, Third Party Advisory
- https://github.com/siteserver/cms/releases/download/siteserver-dev-v5.0.92/siteserver_install.zipPatch, Third Party Advisory
- https://github.com/siteserver/cmsProduct, Third Party Advisory
- https://github.com/siteserver/cms/issues/3236Issue Tracking, Third Party Advisory
- https://github.com/siteserver/cms/releases/download/siteserver-dev-v5.0.92/siteserver_install.zipPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.