# CVE-2018-19918: Cross-site scripting in n/a

> Attacker can execute arbitrary scripts via malicious SVG upload in CuppaCMS, potentially compromising user sessions.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 31 Dec 2018
- **Updated:** 6 May 2025
- **Also known as:** GHSA-49m7-7r54-4vjp

## What is CVE-2018-19918?

CVE-2018-19918 is a medium-severity cross-site scripting vulnerability in n/a, published on 31 Dec 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

CuppaCMS has XSS via an SVG document uploaded to the administrator/#/component/table_manager/view/cu_views URI.

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

## Which versions are affected by CVE-2018-19918?

It affects 1 product.


Products: Cuppacms Cuppacms.

## How do I fix CVE-2018-19918?

No fix has been published for CVE-2018-19918 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-19918 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-19918 exists.

## Other vulnerabilities in n/a

- [CVE-2023-47990](https://insights.sbomify.com/CVE-2023-47990/): SQL injection in n/a (critical 9.8)
- [CVE-2023-39681](https://insights.sbomify.com/CVE-2023-39681/): Code injection in n/a (critical 9.8)
- [CVE-2022-38296](https://insights.sbomify.com/CVE-2022-38296/): File upload in n/a (critical 9.8)
- [CVE-2022-27984](https://insights.sbomify.com/CVE-2022-27984/): SQL injection in n/a (critical 9.8)
- [CVE-2022-27985](https://insights.sbomify.com/CVE-2022-27985/): SQL injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-19918 and fix it if it is affected.

What it is: CVE-2018-19918 is a medium-severity cross-site scripting vulnerability in n/a, published on 31 Dec 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-19918 exists.

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-2018-19918/ (Markdown: https://insights.sbomify.com/CVE-2018-19918/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-19918
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-19918
- OSV: https://osv.dev/vulnerability/CVE-2018-19918

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-19918/
Summaries are generated and may contain mistakes; the official description above is the record.