# CVE-2020-23489: AVideo vulnerable to Improper Privilege Management

> Attackers can delete configuration files to bypass privilege checks and escalate privileges to admin in Avideo.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 16 Nov 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-2mgx-226x-8pwv

## What is CVE-2020-23489?

CVE-2020-23489 is a high-severity missing authorization vulnerability in Wwbn Avideo, published on 16 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The import.json.php file before 8.9 for Avideo is vulnerable to a File Deletion vulnerability. This allows the deletion of configuration.php, which leads to certain privilege checks not being in place, and therefore a user can escalate privileges to admin.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2020-23489?

2 open source packages ship an affected version, including wwbn/avideo. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `wwbn/avideo` | Packagist | All versions | 8.9 |
| `wwbn/avideo` | Packagist | All versions | 8.9 |

Products: Wwbn Avideo.

## How do I fix CVE-2020-23489?

Upgrade wwbn/avideo to 8.9 or later.

## Is CVE-2020-23489 being exploited?

There is no known exploitation of CVE-2020-23489 in the wild and no public exploit code.

Public exploit code:

- RCE exploit for AVideo < 8.9 (CVE-2020-23489 & CVE-2020-23490) (github_poc): https://github.com/al-sultani/AVideo3xploit

## Other vulnerabilities in Wwbn Avideo

- [CVE-2026-40911](https://insights.sbomify.com/CVE-2026-40911/): WWBN AVideo YPTSocket WebSocket Broadcast Relay Leads to Unauthenticated Cross-User JavaScript Execution via Client-Side eval() Sinks (critical 10.0)
- [CVE-2026-33478](https://insights.sbomify.com/CVE-2026-33478/): AVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure, Database Dump, and Command Injection (critical 10.0)
- [CVE-2022-30534](https://insights.sbomify.com/CVE-2022-30534/): Command injection in AVideo (critical 9.9)
- [CVE-2022-30547](https://insights.sbomify.com/CVE-2022-30547/): Path traversal in AVideo (critical 9.9)
- [CVE-2022-32572](https://insights.sbomify.com/CVE-2022-32572/): Command injection in AVideo (critical 9.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-23489 and fix it if it is affected.

What it is: CVE-2020-23489 is a high-severity missing authorization vulnerability in Wwbn Avideo, published on 16 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-23489 in the wild and no public exploit code.

Affected packages and fixed versions:
- wwbn/avideo (Packagist): affected all versions; fixed in 8.9
- wwbn/avideo (Packagist): affected all versions; fixed in 8.9

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-2020-23489/ (Markdown: https://insights.sbomify.com/CVE-2020-23489/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-23489
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-23489
- OSV: https://osv.dev/vulnerability/CVE-2020-23489

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-23489/
Summaries are generated and may contain mistakes; the official description above is the record.