# Insufficient Entropy in DotNetNuke

Advisory record · `GHSA-xx3h-j3cx-8qfj`

- **Identifiers:** `GHSA-xx3h-j3cx-8qfj` · `CVE-2018-18326`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** Yes: CVSS 7+ and EPSS
- **Weakness (CWE):** [CWE-331](https://cwe.mitre.org/data/definitions/331.html)
- **Tags:** [CWE-331](https://agentprime.io/advisories/tag/cwe-331.md)
- **Published:** 5 Jul 2019
- **Updated:** 8 Nov 2023
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 5 Jul 2019, 21:08 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- CVSS score 7.5 (7.0 or more) and EPSS 0.54 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected packages

- `DotNetNuke.Core` (NuGet): affected `<9.3.0`; fixed in `9.3.0`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 7.5 High, CVSS 3.0: `CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.54, the 99th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:24 UTC: First seen by agentprime
- 31 Oct 2026, 15:24 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-xx3h-j3cx-8qfj)

## Sources

- [GitHub Advisory Database: GHSA-xx3h-j3cx-8qfj](https://github.com/advisories/GHSA-xx3h-j3cx-8qfj)
- [OSV: GHSA-xx3h-j3cx-8qfj](https://osv.dev/vulnerability/GHSA-xx3h-j3cx-8qfj)
- <https://nvd.nist.gov/vuln/detail/CVE-2018-18326>
- <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>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-xx3h-j3cx-8qfj>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-xx3h-j3cx-8qfj/>. Everything for agents: <https://agentprime.io/llms.txt>.