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CVE-2018-15811

97
FAUCET Score

CVE-2018-15811 is a critical vulnerability affecting DNN (DotNetNuke) versions 9.2 through 9.2.1, stemming from its use of a weak encryption algorithm for input parameters. This flaw carries a high CVSS score of 7.5, indicating a network-exploitable vulnerability with low attack complexity that can lead to high confidentiality impact. It is actively exploited in the wild, with readily available exploit code in Metasploit and Nuclei, despite a lack of public community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.2, <= 9.2.1CPE matchmatch criteria
cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
74.05%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Added to KEV · Nov 3, 2021
Metasploit: DotNetNuke Cookie Deserialization Remote Code Excecution · Jul 20, 2017
Nuclei: CVE-2018-15811 · Jun 30, 2021
ExploitDB: EDB-48336 · Apr 16, 2020
This CVE's current EPSS score of 0.7405 is in the 99th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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: DotNetNuke.CoreFixed in: 9.2.2

Vendor Advisories (1)

nugetGHSA-h595-8pw6-5q6vhigh

Inadequate Encryption Strength in DotNetNuke

Jul 5, 2019

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/157080/DotNetNuke-Cookie-Deserialization-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
github.com / dnnsoftware/Dnn.Platform/releases
Release Notes
dnnsoftware.com / community/security/security-center
Vendor Advisory