# CVE-2021-24978: OSMapper <= 2.1.5 - Unauthenticated Arbitrary Post Deletion

> Unauthenticated attackers can delete arbitrary posts due to missing authorization and CSRF checks in the OSMapper WordPress plugin.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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:** 28 Mar 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-64vf-2ppg-3mgq

## What is CVE-2021-24978?

CVE-2021-24978 is a medium-severity missing authorization vulnerability in Unknown OSMapper, published on 28 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The OSMapper WordPress plugin through 2.1.5 contains an AJAX action to delete a plugin related post type named 'map' and is registered with the wp_ajax_nopriv prefix, making it available to unauthenticated users. There is no authorisation, CSRF and checks in place to ensure that the post to delete is a map one. As a result, unauthenticated user can delete arbitrary posts from the blog

Weakness: CWE-352 (Cross-Site Request Forgery), CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2021-24978?

It affects 1 product.


Products: B4after Osmapper.

## How do I fix CVE-2021-24978?

No fix has been published for CVE-2021-24978 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24978 being exploited?

There is no known exploitation of CVE-2021-24978 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24978 and fix it if it is affected.

What it is: CVE-2021-24978 is a medium-severity missing authorization vulnerability in Unknown OSMapper, published on 28 Mar 2022. 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-2021-24978 in the wild and no public exploit code.

Affected product: Unknown OSMapper. 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-2021-24978/ (Markdown: https://insights.sbomify.com/CVE-2021-24978/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24978
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24978
- OSV: https://osv.dev/vulnerability/CVE-2021-24978

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-24978/
Summaries are generated and may contain mistakes; the official description above is the record.