# CVE-2026-54682: DiscordChatExporter: Stored XSS in HTML export when markdown formatting is disabled

> Attackers can inject scripts into Discord chat exports when markdown formatting is disabled, allowing execution upon viewing the HTML file.

- **Severity:** High 8.2 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 21 Aug 2026
- **Updated:** 25 Aug 2026
- **Also known as:** GHSA-8qrv-mmch-fr9c

## What is CVE-2026-54682?

CVE-2026-54682 is a high-severity cross-site scripting vulnerability in Tyrrrz DiscordChatExporter, published on 21 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

DiscordChatExporter saves Discord chat logs to a file. Prior to 2.47.2, HTML exports generated with markdown formatting disabled pass attacker-controlled content through FormatMarkdownAsync and FormatEmbedMarkdownAsync in DiscordChatExporter.Core/Exporting/MessageGroupTemplate.cshtml and render it without HTML entity encoding. The affected fields include message.Content, message.ForwardedMessage.Content, message.ReferencedMessage.Content, embed.Title, embed.Description, field.Name, and field.Value. A Discord webhook or bot can store a script payload in these fields, and the payload executes when a user exports the channel with markdown formatting disabled and opens the resulting HTML, allowing the script to read the export or alter its displayed content. This issue is fixed in version 2.47.2.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-54682?


## How do I fix CVE-2026-54682?

No fix has been published for CVE-2026-54682 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-54682 being exploited?

There is no known exploitation of CVE-2026-54682 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-54682 and fix it if it is affected.

What it is: CVE-2026-54682 is a high-severity cross-site scripting vulnerability in Tyrrrz DiscordChatExporter, published on 21 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-54682 in the wild and no public exploit code.

Affected product: Tyrrrz DiscordChatExporter. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-54682/ (Markdown: https://insights.sbomify.com/CVE-2026-54682/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-54682
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-54682
- OSV: https://osv.dev/vulnerability/CVE-2026-54682

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-54682/
Summaries are generated and may contain mistakes; the official description above is the record.