# CVE-2019-0234: Cross-site scripting in Apache Roller

> Reflected XSS in Apache Roller's Math Comment Authenticator allows attackers to execute scripts via unsanitized input.

- **Severity:** Medium 6.1 (`CVSS:3.1/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:** 15 Jul 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-g2p9-qx45-9p93

## What is CVE-2019-0234?

CVE-2019-0234 is a medium-severity cross-site scripting vulnerability in Apache Roller, published on 15 Jul 2019. 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

A Reflected Cross-site Scripting (XSS) vulnerability exists in Apache Roller. Roller's Math Comment Authenticator did not property sanitize user input and could be exploited to perform Reflected Cross Site Scripting (XSS). The mitigation for this vulnerability is to upgrade to the latest version of Roller, which is now Roller 5.2.3.

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

## Which versions are affected by CVE-2019-0234?

It affects 1 product.


Products: Apache Roller.

## How do I fix CVE-2019-0234?

No fix has been published for CVE-2019-0234 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-0234 being exploited?

There is no known exploitation of CVE-2019-0234 in the wild and no public exploit code.

## Other vulnerabilities in Apache Roller

- [CVE-2018-17198](https://insights.sbomify.com/CVE-2018-17198/): Server-side request forgery in Apache Roller (critical 9.8)
- [CVE-2014-0030](https://insights.sbomify.com/CVE-2014-0030/): XML external entity in n/a (critical 9.8)
- [CVE-2021-33580](https://insights.sbomify.com/CVE-2021-33580/): regex injection leading to DoS (high 7.5)
- [CVE-2015-0249](https://insights.sbomify.com/CVE-2015-0249/): Code injection in n/a (high 7.2)
- [CVE-2013-4212](https://insights.sbomify.com/CVE-2013-4212/): Code injection in n/a (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-0234 and fix it if it is affected.

What it is: CVE-2019-0234 is a medium-severity cross-site scripting vulnerability in Apache Roller, published on 15 Jul 2019. 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-2019-0234 in the wild and no public exploit code.

Affected product: Apache Roller. 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-2019-0234/ (Markdown: https://insights.sbomify.com/CVE-2019-0234/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-0234
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-0234
- OSV: https://osv.dev/vulnerability/CVE-2019-0234

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-0234/
Summaries are generated and may contain mistakes; the official description above is the record.