# CVE-2021-47979: WordPress Plugin Backup and Restore 1.0.3 Arbitrary File Deletion

> Authenticated attackers can delete arbitrary files from the WordPress installation directory by manipulating AJAX request parameters.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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:** 16 May 2026
- **Updated:** 15 Jul 2026
- **Also known as:** GHSA-jg68-hr29-3cm4

## What is CVE-2021-47979?

CVE-2021-47979 is a high-severity path traversal vulnerability in Miniorange Backup and Restore, published on 16 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

WordPress Plugin Backup and Restore 1.0.3 contains an arbitrary file deletion vulnerability that allows authenticated attackers to delete files by manipulating parameters in AJAX requests. Attackers can send POST requests to admin-ajax.php with crafted file_name and folder_name parameters to delete arbitrary files from the WordPress installation directory.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2021-47979?


## How do I fix CVE-2021-47979?

No fix has been published for CVE-2021-47979 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-47979 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47979 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-47979 and fix it if it is affected.

What it is: CVE-2021-47979 is a high-severity path traversal vulnerability in Miniorange Backup and Restore, published on 16 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47979 exists.

Affected product: Miniorange Backup and Restore. 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-2021-47979/ (Markdown: https://insights.sbomify.com/CVE-2021-47979/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-47979
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-47979
- OSV: https://osv.dev/vulnerability/CVE-2021-47979

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-47979/
Summaries are generated and may contain mistakes; the official description above is the record.