# CVE-2025-25303: Server-Side Request Forgery (SSRF) in MouseTooltipTranslator

> An attacker can force the user's browser to make requests to arbitrary URLs via the MouseTooltipTranslator extension, potentially accessing internal resources.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Mar 2025
- **Updated:** 4 Mar 2025

## What is CVE-2025-25303?

CVE-2025-25303 is a medium-severity server-side request forgery vulnerability in ttop32 MouseTooltipTranslator, published on 3 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The MouseTooltipTranslator Chrome extension allows mouseover translation of any language at once. The MouseTooltipTranslator browser extension is vulnerable to SSRF attacks. The pdf.mjs script uses the URL parameter from the current URL as the file to download and display to the extension user. Because pdf.mjs is imported in viewer.html and viewer.html is accessible to all URLs, an attacker can force the user’s browser to make a request to any arbitrary URL. After discussion with maintainer, patching this issue would require disabling a major feature of the extension in exchange for a low severity vulnerability. Decision to not patch issue.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2025-25303?


## How do I fix CVE-2025-25303?

No fix has been published for CVE-2025-25303 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-25303 being exploited?

There is no known exploitation of CVE-2025-25303 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-25303 and fix it if it is affected.

What it is: CVE-2025-25303 is a medium-severity server-side request forgery vulnerability in ttop32 MouseTooltipTranslator, published on 3 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-25303 in the wild and no public exploit code.

Affected product: ttop32 MouseTooltipTranslator. 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-2025-25303/ (Markdown: https://insights.sbomify.com/CVE-2025-25303/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-25303
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-25303
- OSV: https://osv.dev/vulnerability/CVE-2025-25303

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-25303/
Summaries are generated and may contain mistakes; the official description above is the record.