# CVE-2018-14953: Cross-site scripting in n/a

> Attackers can execute arbitrary scripts in victim browsers via crafted math tags in SquirrelMail, potentially leading to session hijacking.

- **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:** Yes
- **Published:** 5 Aug 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-255x-mvhm-3947, UBUNTU-CVE-2018-14953

## What is CVE-2018-14953?

CVE-2018-14953 is a medium-severity cross-site scripting vulnerability in Squirrelmail Squirrelmail, published on 5 Aug 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 mail message display page in SquirrelMail through 1.4.22 has XSS via a "<math xlink:href=" attack.

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

## Which versions are affected by CVE-2018-14953?

It affects 1 product.


Products: Squirrelmail Squirrelmail.

## How do I fix CVE-2018-14953?

Upgrade to a fixed version.

## Is CVE-2018-14953 being exploited?

There is no known exploitation of CVE-2018-14953 in the wild and no public exploit code.

## Other vulnerabilities in Squirrelmail Squirrelmail

- [CVE-2002-0516](https://insights.sbomify.com/CVE-2002-0516/): Command injection in n/a (critical 10.0)
- [CVE-2020-14932](https://insights.sbomify.com/CVE-2020-14932/): Deserialization in n/a (critical 9.8)
- [CVE-2020-14933](https://insights.sbomify.com/CVE-2020-14933/): Deserialization in n/a (high 8.8)
- [CVE-2017-7692](https://insights.sbomify.com/CVE-2017-7692/): Command injection in n/a (high 8.8)
- [CVE-2007-2631](https://insights.sbomify.com/CVE-2007-2631/): Cross-site request forgery in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-14953 and fix it if it is affected.

What it is: CVE-2018-14953 is a medium-severity cross-site scripting vulnerability in Squirrelmail Squirrelmail, published on 5 Aug 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-2018-14953 in the wild and no public exploit code.

Affected product: Squirrelmail Squirrelmail. 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-2018-14953/ (Markdown: https://insights.sbomify.com/CVE-2018-14953/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-14953
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-14953
- OSV: https://osv.dev/vulnerability/CVE-2018-14953

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-14953/
Summaries are generated and may contain mistakes; the official description above is the record.