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Public proof of conceptFix available

CVE-2018-18326

A public proof of concept exists; no exploitation attested.

  • Published2019-07-03
  • WeaknessCWE-331

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

DNN (aka DotNetNuke) 9.2 through 9.2.2 incorrectly converts encryption key source values, resulting in lower than expected entropy. NOTE: this issue exists because of an incomplete fix for CVE-2018-15812.

Timeline

dates in UTC
  1. 2020-04-16Exploit-DB entryExploit-DB

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-18326?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-18326?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Dnnsoftware dotnetnuke
BranchAffectedFixed in
9.2≥ 9.2, ≤ 9.2.2no fix published
DotNetNuke.Core
BranchAffectedFixed in
9.3< 9.3.09.3.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-48336
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
1 moduleexploit/windows/http/dnn_cookie_deserialization_rcerank: excellentModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2019-07-03
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-xx3h-j3cx-8qfj

Frequently asked questions

What is CVE-2018-18326?

DNN (aka DotNetNuke) 9.2 through 9.2.2 incorrectly converts encryption key source values, resulting in lower than expected entropy. NOTE: this issue exists because of an incomplete fix for CVE-2018-15812.

Is CVE-2018-18326 actively exploited?

Active exploitation of CVE-2018-18326 has not been confirmed. Its EPSS score was 54.3% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-18326?

CVE-2018-18326 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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Same product first, then the same vendor advisory and the same publication week.

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Sources for this record