# CVE-2018-20351: Cross-site scripting in n/a

> Stored XSS in Evernote for macOS allows attackers to execute arbitrary scripts in the context of the application.

- **Severity:** Medium 6.1 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 22 Dec 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-7j6w-xc6v-639p

## What is CVE-2018-20351?

CVE-2018-20351 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Dec 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The Markdown component in Evernote (Chinese) before 8.3.2 on macOS allows stored XSS, aka MAC-832.

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

## Which versions are affected by CVE-2018-20351?

It affects 1 product.


Products: Evernote Evernote.

## How do I fix CVE-2018-20351?

No fix has been published for CVE-2018-20351 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-20351 being exploited?

There is no known exploitation of CVE-2018-20351 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2023-50643](https://insights.sbomify.com/CVE-2023-50643/): Code injection in n/a (critical 9.8)
- [CVE-2020-17759](https://insights.sbomify.com/CVE-2020-17759/): Command injection in n/a (high 8.8)
- [CVE-2019-17051](https://insights.sbomify.com/CVE-2019-17051/): Security feature bypass in n/a (high 7.8)
- [CVE-2019-10038](https://insights.sbomify.com/CVE-2019-10038/): Path traversal in n/a (high 7.8)
- [CVE-2016-4900](https://insights.sbomify.com/CVE-2016-4900/): Privilege escalation in Evernote for Windows (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-20351 and fix it if it is affected.

What it is: CVE-2018-20351 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Dec 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-20351 in the wild and no public exploit code.

Affected product: n/a. 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-2018-20351/ (Markdown: https://insights.sbomify.com/CVE-2018-20351/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-20351
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-20351
- OSV: https://osv.dev/vulnerability/CVE-2018-20351

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-20351/
Summaries are generated and may contain mistakes; the official description above is the record.