# CVE-2021-24994: WPvivid Backup and Migration Plugin < 0.9.69 - Unauthenticated Stored Cross-Site Scripting

> Unauthenticated attackers can inject malicious scripts via remote storage parameters, leading to stored XSS in the admin interface.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 28 Feb 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-3mw8-p9vq-vwxw

## What is CVE-2021-24994?

CVE-2021-24994 is a medium-severity cross-site scripting vulnerability in Unknown Migration, Backup, Staging – WPvivid Backup and Migration Plugin, published on 28 Feb 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The Migration, Backup, Staging WordPress plugin before 0.9.69 does not have authorisation when adding remote storages, and does not sanitise as well as escape a parameter from such unauthenticated requests before outputting it in admin page, leading to a Stored Cross-Site Scripting issue

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2021-24994?

It affects 1 product.


Products: Wpvivid Migration\, Backup\, Staging.

## How do I fix CVE-2021-24994?

No fix has been published for CVE-2021-24994 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24994 being exploited?

There is no known exploitation of CVE-2021-24994 in the wild and no public exploit code.

## Other vulnerabilities in Unknown Migration, Backup, Staging – WPvivid Backup and Migration Plugin

- [CVE-2024-1981](https://insights.sbomify.com/CVE-2024-1981/): SQL injection in Migration, Backup, Staging – WPvivid (critical 9.8)
- [CVE-2024-10962](https://insights.sbomify.com/CVE-2024-10962/): Migration, Backup, Staging – WPvivid <= 0.9.107 - Unauthenticated PHP Object Injection (high 8.8)
- [CVE-2020-36842](https://insights.sbomify.com/CVE-2020-36842/): Migration, Backup, Staging – WPvivid <= 0.9.35 - Authenticated (Subscriber+) Arbitrary File Upload (high 8.8)
- [CVE-2023-41243](https://insights.sbomify.com/CVE-2023-41243/): WordPress WPvivid Backup Plugin plugin <= 0.9.90 - Privilege Escalation on Staging Environment vulnerability (high 8.8)
- [CVE-2023-4274](https://insights.sbomify.com/CVE-2023-4274/): Path traversal in Migration, Backup, Staging – WPvivid (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24994 and fix it if it is affected.

What it is: CVE-2021-24994 is a medium-severity cross-site scripting vulnerability in Unknown Migration, Backup, Staging – WPvivid Backup and Migration Plugin, published on 28 Feb 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-24994 in the wild and no public exploit code.

Affected product: Unknown Migration, Backup, Staging – WPvivid Backup and Migration Plugin. 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-2021-24994/ (Markdown: https://insights.sbomify.com/CVE-2021-24994/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24994
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24994
- OSV: https://osv.dev/vulnerability/CVE-2021-24994

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-24994/
Summaries are generated and may contain mistakes; the official description above is the record.