Secuno
ENNL
Book demo

CVE-2018-15811

DotNetNuke (DNN) Inadequate Encryption Strength

7.5 HIGHActively exploited (CISA KEV)Public exploitEPSS 76.1%
  1. Published3 Jul 2019
  2. Added to CISA KEV3 Nov 2021
  3. Remediation due3 May 2022
Actively exploited (CISA KEV)

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

Added to KEV: 3 Nov 2021Federal remediation due: 3 May 2022

Description

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

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Dnnsoftware Dotnetnuke≥ 9.2 ≤ 9.2.1

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-748899.8
openssl_encrypt versions before 1.4.0 use HKDF with no salt and static info parameter…
CVE-2026-92018.8
IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute…
CVE-2024-235649.1
HCL Aftermarket EPC is affected by Business Logic Vulnerability using which a non valid…
CVE-2026-453639.1
ruby-jwt is a Ruby implementation of the RFC 7519 OAuth JSON Web Token standard. Prior…
CVE-2026-418608.8
CWE-326 in BOSH allows a local attacker to steal Basic-auth credentials or redirect UAA…
CVE-2026-457879.1
electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp…

Frequently asked

Is CVE-2018-15811 being actively exploited?

Yes. CVE-2018-15811 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Nov 2021.

How severe is CVE-2018-15811?

CVE-2018-15811 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 76.1% probability of exploitation.

Which products are affected by CVE-2018-15811?

Affected products include Dnnsoftware Dotnetnuke.

How do I fix CVE-2018-15811?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2018-15811 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.