# CVE-2023-51478: WordPress Build App Online plugin <= 1.0.19 - Unauthenticated Account Takeover vulnerability

> Unauthenticated attackers can bypass authentication to take over accounts and escalate privileges in the Build App Online WordPress plugin.

- **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:** 25 Apr 2024
- **Updated:** 28 Apr 2026
- **Also known as:** CVE-2024-3658, GHSA-6x77-72j8-vq6j

## What is CVE-2023-51478?

CVE-2023-51478 is a critical authentication bypass vulnerability in Abdul Hakeem Build App Online, published on 25 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper Authentication vulnerability in Abdul Hakeem Build App Online allows Privilege Escalation.This issue affects Build App Online: from n/a through 1.0.19.

Weakness: CWE-306 (Missing Authentication for Critical Functionality), CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2023-51478?

It affects 1 product.


Products: Buildapp Build App Online.

## How do I fix CVE-2023-51478?

No fix has been published for CVE-2023-51478 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-51478 being exploited?

There is no known exploitation of CVE-2023-51478 in the wild and no public exploit code.

## Other vulnerabilities in Abdul Hakeem Build App Online

- [CVE-2024-49649](https://insights.sbomify.com/CVE-2024-49649/): WordPress Build App Online plugin <= 1.0.23 - Local File Inclusion vulnerability (critical 9.8)
- [CVE-2023-51479](https://insights.sbomify.com/CVE-2023-51479/): WordPress Build App Online plugin <= 1.0.19 - Authenticated Privilege Escalation vulnerability (high 8.8)
- [CVE-2023-7264](https://insights.sbomify.com/CVE-2023-7264/): Build App Online <= 1.0.22 - Account Takeover via Weak Password Reset Mechanism (high 8.1)
- [CVE-2024-53751](https://insights.sbomify.com/CVE-2024-53751/): WordPress Build App Online plugin <= 1.0.23 - Cross Site Request Forgery (CSRF) vulnerability (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-51478 and fix it if it is affected.

What it is: CVE-2023-51478 is a critical authentication bypass vulnerability in Abdul Hakeem Build App Online, published on 25 Apr 2024. 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-2023-51478 in the wild and no public exploit code.

Affected product: Abdul Hakeem Build App Online. 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-2023-51478/ (Markdown: https://insights.sbomify.com/CVE-2023-51478/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-51478
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-51478
- OSV: https://osv.dev/vulnerability/CVE-2023-51478

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-51478/
Summaries are generated and may contain mistakes; the official description above is the record.