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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2018-18325

DotNetNuke (DNN) Inadequate Encryption Strength Vulnerability

KEVEXPLOIT ✓HIGH 7.5EPSS 74.0%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

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.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
74.05% probability · 99th percentile
Public exploits
1 in Exploit-DB · verified · first 16 April 2020
CISA KEV
Listed 3 November 2021 · due 3 May 2022
Weakness
CWE-326
Affected
dnnsoftware/dotnetnuke
Source
cve@mitre.org
EPSS trend
0%38%75%27 October 2026: 74.05%27 October 202627 October 2026

EPSS 74.0% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2018-18325

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-48336source ↗DotNetNuke - Cookie Deserialization Remote Code Execution (Metasploit)windows · Metasploitremote16 April 2020yes

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.