# CVE-2024-0893: Schema App Structured Data <= 2.2.0 - Missing Authorization

> Authenticated subscribers can modify or delete post metadata due to missing capability checks in the Schema App Structured Data plugin.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`)
- **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:** 24 May 2024
- **Updated:** 8 Apr 2026

## What is CVE-2024-0893?

CVE-2024-0893 is a medium-severity missing authorization vulnerability in vberkel Schema App Structured Data, published on 24 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Schema App Structured Data plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the MarkupUpdate function in all versions up to, and including, 2.2.0. This makes it possible for authenticated attackers, with subscriber access or higher, to update or delete post metadata.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2024-0893?

It affects 1 product.


Products: Schemaapp Schema App Structured Data.

## How do I fix CVE-2024-0893?

No fix has been published for CVE-2024-0893 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-0893 being exploited?

There is no known exploitation of CVE-2024-0893 in the wild and no public exploit code.

## Other vulnerabilities in vberkel Schema App Structured Data

- [CVE-2023-44258](https://insights.sbomify.com/CVE-2023-44258/): WordPress Schema App Structured Data plugin <= 1.23.1 - Broken Access Control + CSRF vulnerability (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-0893 and fix it if it is affected.

What it is: CVE-2024-0893 is a medium-severity missing authorization vulnerability in vberkel Schema App Structured Data, published on 24 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-0893 in the wild and no public exploit code.

Affected product: vberkel Schema App Structured Data. 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-2024-0893/ (Markdown: https://insights.sbomify.com/CVE-2024-0893/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-0893
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-0893
- OSV: https://osv.dev/vulnerability/CVE-2024-0893

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-0893/
Summaries are generated and may contain mistakes; the official description above is the record.