# CVE-2019-5454: SQL injection in com.nextcloud.client

> An attacker can execute harmful SQL queries to destroy the local cache in the Nextcloud Android app, forcing users to reset their accounts.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Jul 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-8xmq-qp2g-jjf3

## What is CVE-2019-5454?

CVE-2019-5454 is a critical SQL injection vulnerability in com.nextcloud.client, published on 30 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

SQL Injection in the Nextcloud Android app prior to version 3.0.0 allows to destroy a local cache when a harmful query is executed requiring to resetup the account.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2019-5454?

It affects 1 product.


Products: Nextcloud Nextcloud.

## How do I fix CVE-2019-5454?

No fix has been published for CVE-2019-5454 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-5454 being exploited?

There is no known exploitation of CVE-2019-5454 in the wild and no public exploit code.

Public exploit code:

- SQLi CVE-2019-5454 (github_poc): https://github.com/shanika04/nextcloud_android

## Other vulnerabilities in com.nextcloud.client

- [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)
- [CVE-2021-22912](https://insights.sbomify.com/CVE-2021-22912/): Information disclosure in Nextcloud iOS app (it.twsweb.Nextcloud) (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-5454 and fix it if it is affected.

What it is: CVE-2019-5454 is a critical SQL injection vulnerability in com.nextcloud.client, published on 30 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-5454 in the wild and no public exploit code.

Affected product: com.nextcloud.client. 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-2019-5454/ (Markdown: https://insights.sbomify.com/CVE-2019-5454/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-5454
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-5454
- OSV: https://osv.dev/vulnerability/CVE-2019-5454

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-5454/
Summaries are generated and may contain mistakes; the official description above is the record.