# CVE-2020-12704: Cross-site scripting in n/a

> Stored XSS in UliCMS PageController allows attackers to inject malicious scripts, potentially leading to session hijacking or code execution.

- **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:** 7 May 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-rf99-h2h2-8738

## What is CVE-2020-12704?

CVE-2020-12704 is a medium-severity cross-site scripting vulnerability in n/a, published on 7 May 2020. 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

UliCMS before 2020.2 has PageController stored XSS.

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

## Which versions are affected by CVE-2020-12704?

It affects 1 product.


Products: Ulicms Ulicms.

## How do I fix CVE-2020-12704?

No fix has been published for CVE-2020-12704 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-12704 being exploited?

There is no known exploitation of CVE-2020-12704 in the wild and no public exploit code.

Public exploit code:

- UliCMS 2020.1 - Persistent Cross-Site Scripting (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2023-53914](https://insights.sbomify.com/CVE-2023-53914/): UliCMS 2023.1 Authentication Bypass via Mass Assignment Vulnerability (critical 9.3)
- [CVE-2023-53923](https://insights.sbomify.com/CVE-2023-53923/): UliCMS 2023.1 Privilege Escalation via Unauthenticated Admin Account Creation (critical 9.3)
- [CVE-2023-53924](https://insights.sbomify.com/CVE-2023-53924/): UliCMS 2023.1-sniffing-vicuna Remote Code Execution via Avatar Upload (high 8.7)
- [CVE-2020-12703](https://insights.sbomify.com/CVE-2020-12703/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2019-11398](https://insights.sbomify.com/CVE-2019-11398/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-12704 and fix it if it is affected.

What it is: CVE-2020-12704 is a medium-severity cross-site scripting vulnerability in n/a, published on 7 May 2020. 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-2020-12704 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-2020-12704/ (Markdown: https://insights.sbomify.com/CVE-2020-12704/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-12704
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-12704
- OSV: https://osv.dev/vulnerability/CVE-2020-12704

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-12704/
Summaries are generated and may contain mistakes; the official description above is the record.