# CVE-2020-13382: Missing authorization in n/a

> An attacker can access or modify data without authentication due to incorrect access control in openSIS.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Jul 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-8r9c-hvwg-q85h

## What is CVE-2020-13382?

CVE-2020-13382 is a critical missing authorization vulnerability in Os4ed Opensis, published on 1 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

openSIS through 7.4 has Incorrect Access Control.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2020-13382?

It affects 1 product.


Products: Os4ed Opensis.

## How do I fix CVE-2020-13382?

No fix has been published for CVE-2020-13382 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-13382 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-13382 exists.

Public exploit code:

- openSIS Unauthenticated PHP Code Execution (metasploit)

## Other vulnerabilities in Os4ed Opensis

- [CVE-2020-6143](https://insights.sbomify.com/CVE-2020-6143/): Code injection in OS4Ed (critical 10.0)
- [CVE-2020-6144](https://insights.sbomify.com/CVE-2020-6144/): Code injection in OS4Ed (critical 10.0)
- [CVE-2020-6142](https://insights.sbomify.com/CVE-2020-6142/): Path traversal in OS4Ed (critical 9.9)
- [CVE-2021-41691](https://insights.sbomify.com/CVE-2021-41691/): SQL injection in n/a (critical 9.8)
- [CVE-2025-22926](https://insights.sbomify.com/CVE-2025-22926/): Path traversal in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-13382 and fix it if it is affected.

What it is: CVE-2020-13382 is a critical missing authorization vulnerability in Os4ed Opensis, published on 1 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-13382 exists.

Affected product: Os4ed Opensis. 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-2020-13382/ (Markdown: https://insights.sbomify.com/CVE-2020-13382/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-13382
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-13382
- OSV: https://osv.dev/vulnerability/CVE-2020-13382

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-13382/
Summaries are generated and may contain mistakes; the official description above is the record.