# CVE-2019-18662: SQL injection in n/a

> Attackers can read sensitive database data via SQL injection in the Live Chat plugin, requiring the plugin to be enabled.

- **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:** 2 Nov 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-xxmj-xf3c-rjq4

## What is CVE-2019-18662?

CVE-2019-18662 is a critical SQL injection vulnerability in n/a, published on 2 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in YouPHPTube through 7.7. User input passed through the live_stream_code POST parameter to /plugin/LiveChat/getChat.json.php is not properly sanitized (in getFromChat in plugin/LiveChat/Objects/LiveChatObj.php) before being used to construct a SQL query. This can be exploited by malicious users to, e.g., read sensitive data from the database through in-band SQL Injection attacks. Successful exploitation of this vulnerability requires the Live Chat plugin to be enabled.

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

## Which versions are affected by CVE-2019-18662?

It affects 1 product.


Products: Youphptube Youphptube.

## How do I fix CVE-2019-18662?

No fix has been published for CVE-2019-18662 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-18662 being exploited?

There is no known exploitation of CVE-2019-18662 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2019-5151](https://insights.sbomify.com/CVE-2019-5151/): SQL injection in YouPHPTube (critical 10.0)
- [CVE-2019-16124](https://insights.sbomify.com/CVE-2019-16124/): Missing authorization in n/a (critical 9.8)
- [CVE-2019-5150](https://insights.sbomify.com/CVE-2019-5150/): SQL injection in YouPHPTube (high 8.9)
- [CVE-2021-47749](https://insights.sbomify.com/CVE-2021-47749/): YouPHPTube <= 7.8 - Directory Traversal (high 8.7)
- [CVE-2021-25874](https://insights.sbomify.com/CVE-2021-25874/): SQL injection in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-18662 and fix it if it is affected.

What it is: CVE-2019-18662 is a critical SQL injection vulnerability in n/a, published on 2 Nov 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-2019-18662 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-2019-18662/ (Markdown: https://insights.sbomify.com/CVE-2019-18662/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-18662
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-18662
- OSV: https://osv.dev/vulnerability/CVE-2019-18662

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-18662/
Summaries are generated and may contain mistakes; the official description above is the record.