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Vulnerabilities

Vulnerability · CVE-2018-15811

DotNetNuke (DNN) Inadequate Encryption Strength Vulnerability

Published Jul 3, 2019 · catalog updated Jun 16, 2026 · DotNetNuke (DNN) DotNetNuke (DNN)

Patch now

CVE-2018-15811 is in the CISA known-exploited catalog, due May 3, 2022. Confirm DotNetNuke (DNN) DotNetNuke (DNN) against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High7.5
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
76.30%
Remediation
Remediation guidance
Affected products
cpe dnnsoftware/dotnetnuke · vendor DotNetNuke (DNN) DotNetNuke (DNN)

DotNetNuke (DNN) contains an inadequate encryption strength vulnerability resulting from the use of a weak encryption algorithm to protect input parameters.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe dnnsoftware/dotnetnukeversion unspecified
  • vendor DotNetNuke (DNN) DotNetNuke (DNN)version unspecified

How to fix CVE-2018-15811

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2018-15811 is in the CISA known-exploited catalog, due May 3, 2022. Confirm DotNetNuke (DNN) DotNetNuke (DNN) against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply updates per vendor instructions.

What should an analyst verify?

CWE-326: Inadequate Encryption Strength. EPSS 76.30%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 3, 2019 · Catalog

    Detected

    DotNetNuke (DNN) contains an inadequate encryption strength vulnerability resulting from the use of a weak encryption algorithm to protect input parameters.

  2. Nov 3, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. May 3, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    DotNetNuke (DNN) contains an inadequate encryption strength vulnerability resulting from the use of a weak encryption algorithm to protect input parameters.

Sources

  • CISA KEVConfirmed exploitationCVE-2018-15811

    DotNetNuke (DNN) contains an inadequate encryption strength vulnerability resulting from the use of a weak encryption algorithm to protect input parameters.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2018-15811

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2018-15811

    30-day exploitation probability 76.3%

    first.org
  • Exploit DatabasePublic exploit reference48336

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • Metasploit ModulesPublic exploit moduleexploit_windows/http/dnn_cookie_deserialization_rce

    Public module reference (excellent). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDVulnerability recordCVE-2018-15811

    DNN (aka DotNetNuke) 9.2 through 9.2.1 uses a weak encryption algorithm to protect input parameters.

    nvd.nist.gov
  • Packet Storm SecurityCited referencehttp://packetstormsecurity.com/files/157080/DotNetNuke-Cookie-Deserialization-Remote-Code-Execution.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com
  • VulnCheck KEVConfirmed exploitationCVE-2018-15811

    DotNetNuke (DNN) contains an inadequate encryption strength vulnerability resulting from the use of a weak encryption algorithm to protect input parameters.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.