# CVE-2025-58768: DeepChat's Mermaid rendering has XSS leading to RCE


- **Severity:** Critical 9.7 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 9 Sep 2025
- **Updated:** 9 Sep 2025
- **Also known as:** GHSA-f7q5-vc93-wp6j

## What is CVE-2025-58768?

CVE-2025-58768 is a critical vulnerability in ThinkInAIXYZ deepchat, published on 9 Sep 2025. 

### Official description

DeepChat is a smart assistant uses artificial intelligence. Prior to version 0.3.5, in the Mermaid chart rendering component, there is a risky operation of directly using `innerHTML` to set user content. Therefore, any malicious content rendered via Mermaid will directly trigger the exploit chain, leading to command execution. This vulnerability is primarily caused by a failure to fully address the existing XSS issue in the project, leading to another exploit chain. The exploit chain is consistent with the report GHSA-hqr4-4gfc-5p2j, executing arbitrary JavaScript code via XSS and arbitrary commands via exposed IPC. Version 0.3.5 contains an updated fix.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2025-58768?

It affects 1 product.


Products: Thinkinai Deepchat.

## How do I fix CVE-2025-58768?

No fix has been published for CVE-2025-58768 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-58768 being exploited?

There is no known exploitation of CVE-2025-58768 in the wild and no public exploit code.

## Other vulnerabilities in ThinkInAIXYZ deepchat

- [CVE-2025-67744](https://insights.sbomify.com/CVE-2025-67744/): Mermaid XSS vulnerability leads to Remote Code Execution (critical 9.7)
- [CVE-2025-66481](https://insights.sbomify.com/CVE-2025-66481/): DeepChat's Incomplete XSS Fix Allows RCE through Mermaid Content (critical 9.7)
- [CVE-2025-66222](https://insights.sbomify.com/CVE-2025-66222/): DeepChat Cross-Site Scripting(XSS) escalate to Remote Code Execution(RCE) (critical 9.7)
- [CVE-2025-55733](https://insights.sbomify.com/CVE-2025-55733/): DeepChat One-click Remote Code Execution through Custom URL Handling (critical 9.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-58768 and fix it if it is affected.

What it is: CVE-2025-58768 is a critical vulnerability in ThinkInAIXYZ deepchat, published on 9 Sep 2025. 
Exploitation: There is no known exploitation of CVE-2025-58768 in the wild and no public exploit code.

Affected product: ThinkInAIXYZ deepchat. 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-2025-58768/ (Markdown: https://insights.sbomify.com/CVE-2025-58768/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-58768
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-58768
- OSV: https://osv.dev/vulnerability/CVE-2025-58768

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-58768/
Summaries are generated and may contain mistakes; the official description above is the record.