# DNN.PLATFORM Allows Reflected Cross-Site Scripting (XSS) in some TokenReplace situations with SkinObjects

Advisory record · `GHSA-pf4h-vrv6-cmvr`

- **Identifiers:** `GHSA-pf4h-vrv6-cmvr` · `CVE-2025-52486`
- **State:** Confirmed
- **Severity:** CVSS 6.1 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-79](https://cwe.mitre.org/data/definitions/79.html)
- **Tags:** [Cross-site scripting (XSS)](https://agentprime.io/advisories/tag/xss.md)
- **Published:** 20 Jun 2025
- **Updated:** 15 Sept 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 20 Jun 2025, 14:56 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `DNN.PLATFORM` (NuGet): affected `>=6.0.0, <10.0.1`; fixed in `10.0.1`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> DNN.PLATFORM versions 6.0.0 up to but not including 10.0.1 are vulnerable to reflected cross-site scripting in some TokenReplace situations involving SkinObjects. An attacker can craft content in URLs that is not properly sanitized, so a user who follows a malicious link may have script run in their browser. Upgrade to DNN.PLATFORM 10.0.1, which contains the fix. The source gives few details about which SkinObjects are affected.

Written 9 Nov 2026.

## 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

- 6.1 Medium, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0023, the 13th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:22 UTC: First seen by agentprime
- 31 Oct 2026, 15:22 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-pf4h-vrv6-cmvr)

## Sources

- [GitHub Advisory Database: GHSA-pf4h-vrv6-cmvr](https://github.com/advisories/GHSA-pf4h-vrv6-cmvr)
- [OSV: GHSA-pf4h-vrv6-cmvr](https://osv.dev/vulnerability/GHSA-pf4h-vrv6-cmvr)
- <https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-pf4h-vrv6-cmvr>
- <https://nvd.nist.gov/vuln/detail/CVE-2025-52486>
- <https://github.com/dnnsoftware/Dnn.Platform/commit/74f6de68da1572c1d7e9c6e30e9f77f7c5596b1b>
- <https://github.com/dnnsoftware/Dnn.Platform>

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-pf4h-vrv6-cmvr>, 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-pf4h-vrv6-cmvr/>. Everything for agents: <https://agentprime.io/llms.txt>.