# CVE-2019-12742: Auth bypass in n/a

> A non-privileged user can change any account's password, including admin, via an insecure direct object reference in Bludit.

- **Severity:** High 8.8 (`CVSS:3.0/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:** No
- **Published:** 5 Jun 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-25f8-p6jg-jqw6

## What is CVE-2019-12742?

CVE-2019-12742 is a high-severity authentication bypass vulnerability in n/a, published on 5 Jun 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Bludit prior to 3.9.1 allows a non-privileged user to change the password of any account, including admin. This occurs because of bl-kernel/admin/controllers/user-password.php Insecure Direct Object Reference (a modified username POST parameter).

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2019-12742?

It affects 1 product.


Products: Bludit Bludit.

## How do I fix CVE-2019-12742?

No fix has been published for CVE-2019-12742 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-12742 being exploited?

There is no known exploitation of CVE-2019-12742 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-18879](https://insights.sbomify.com/CVE-2020-18879/): File upload in n/a (critical 9.8)
- [CVE-2020-20495](https://insights.sbomify.com/CVE-2020-20495/): Path traversal in n/a (critical 9.1)
- [CVE-2020-18190](https://insights.sbomify.com/CVE-2020-18190/): Path traversal in n/a (critical 9.1)
- [CVE-2024-24550](https://insights.sbomify.com/CVE-2024-24550/): Bludit - Remote Code Execution (RCE) through File API (high 8.9)
- [CVE-2024-24551](https://insights.sbomify.com/CVE-2024-24551/): Bludit - Remote Code Execution (RCE) through Image API (high 8.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-12742 and fix it if it is affected.

What it is: CVE-2019-12742 is a high-severity authentication bypass vulnerability in n/a, published on 5 Jun 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-12742 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-2019-12742/ (Markdown: https://insights.sbomify.com/CVE-2019-12742/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-12742
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-12742
- OSV: https://osv.dev/vulnerability/CVE-2019-12742

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-12742/
Summaries are generated and may contain mistakes; the official description above is the record.