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CVE-2019-11401

23
FAUCET Score

CVE-2019-11401 is a remote code execution vulnerability affecting SiteServer CMS version 6.9.0. An authenticated administrator can bypass file extension restrictions by uploading a file with a specially crafted extension like ".aassp," which is then converted to ".asp," allowing arbitrary code execution. This vulnerability has a CVSS score of 7.2 (HIGH), indicating a network-based attack with low complexity, requiring high privileges, and leading to high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
6.9.0CPE matchmatch criteria
cpe:2.3:a:siteserver:siteserver_cms:6.9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.2HIGH

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.87%
Probability of exploitation in next 30 days
EPSS Percentile
85.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0287 is in the 84th percentile among its peer group of 5,531 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

nugetpatch availablevia ghsa
Product: sscmsFixed in: 6.12

Vendor Advisories (1)

nugetGHSA-ff4w-8chr-w2x9high

SiteServer CMS RCE via unsafe file upload

May 24, 2022

References

github.com / siteserver/cms/issues/1858
ExploitThird Party Advisory