What is CVE-2018-18325?

CVE-2018-18325 is a high-severity vulnerability in Dnnsoftware Dotnetnuke, classified under Inadequate Encryption Strength. CVSS score: 7.5/10. Published 2019-07-03.

How severe is CVE-2018-18325?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2018-18325 known to be exploited?

Yes. CVE-2018-18325 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 8 public proof-of-concept repositories are indexed.

Vulnerability in Dnnsoftware Dotnetnuke

CVE-2018-18325

DNN (aka DotNetNuke) 9.2 through 9.2.2 uses a weak encryption algorithm to protect input parameters. NOTE: this issue exists because of an incomplete fix for CVE-2018-15811.

Published 2019-07-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.740 (99.5th percentile), scored 2026-10-19.

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.740 · newest: 0.740 · change: 0.000

Affected products

Dnnsoftware Dotnetnuke

Weakness classification (CWE)

CWE-326 — Inadequate Encryption Strength

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2021-11-03. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-05-03.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

github.com/dnnsoftware/Dnn.Platform/releases (Release Notes)
www.dnnsoftware.com/community/security/security-center (Vendor Advisory)
packetstormsecurity.com/files/157080/DotNetNuke-Cookie-Deserialization-Remote-C… (Exploit, VDB Entry, Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2018-18325?: CVE-2018-18325 is a high-severity vulnerability in Dnnsoftware Dotnetnuke, classified under Inadequate Encryption Strength. CVSS score: 7.5/10. Published 2019-07-03.
How severe is CVE-2018-18325?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-18325 known to be exploited?: Yes. CVE-2018-18325 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 8 public proof-of-concept repositories are indexed.