# CVE-2019-15614: Cross-site scripting in Nextcloud iOS App

> Attackers can execute arbitrary scripts in the Nextcloud iOS app by tricking users into opening malicious HTML files.

- **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:** 4 Feb 2020
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-9q7x-j986-hg32

## What is CVE-2019-15614?

CVE-2019-15614 is a medium-severity cross-site scripting vulnerability in Nextcloud iOS App, published on 4 Feb 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Missing sanitization in the iOS App 2.24.4 causes an XSS when opening malicious HTML files.

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

## Which versions are affected by CVE-2019-15614?

It affects 1 product.


Products: Nextcloud Nextcloud.

## How do I fix CVE-2019-15614?

No fix has been published for CVE-2019-15614 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-15614 being exploited?

There is no known exploitation of CVE-2019-15614 in the wild and no public exploit code.

## Other vulnerabilities in Nextcloud iOS App

- [CVE-2019-5454](https://insights.sbomify.com/CVE-2019-5454/): SQL injection in com.nextcloud.client (critical 9.8)
- [CVE-2021-43863](https://insights.sbomify.com/CVE-2021-43863/): SQL Injection in FileContentProvider (GHSL-2021-1007) (high 7.5)
- [CVE-2019-5450](https://insights.sbomify.com/CVE-2019-5450/): Cross-site scripting in com.nextcloud.client (medium 6.8)
- [CVE-2019-5455](https://insights.sbomify.com/CVE-2019-5455/): Auth bypass in com.nextcloud.client (medium 6.8)
- [CVE-2021-22905](https://insights.sbomify.com/CVE-2021-22905/): Information disclosure in Nextcloud Android App (com.nextcloud.client) (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-15614 and fix it if it is affected.

What it is: CVE-2019-15614 is a medium-severity cross-site scripting vulnerability in Nextcloud iOS App, published on 4 Feb 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-15614 in the wild and no public exploit code.

Affected product: Nextcloud iOS App. 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-2019-15614/ (Markdown: https://insights.sbomify.com/CVE-2019-15614/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-15614
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-15614
- OSV: https://osv.dev/vulnerability/CVE-2019-15614

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-15614/
Summaries are generated and may contain mistakes; the official description above is the record.