# CVE-2021-38343: Nested Pages <= 3.1.15 Open Redirect

> An attacker can redirect users to malicious sites via crafted POST parameters in the Nested Pages WordPress plugin admin actions.

- **Severity:** Medium 4.7 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/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:** 30 Aug 2021
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-wg24-7m7r-fcx2

## What is CVE-2021-38343?

CVE-2021-38343 is a medium-severity vulnerability in Kyle Phillips Nested Pages, published on 30 Aug 2021. 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 Nested Pages WordPress plugin <= 3.1.15 was vulnerable to an Open Redirect via the `page` POST parameter in the `npBulkActions`, `npBulkEdit`, `npListingSort`, and `npCategoryFilter` `admin_post` actions.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2021-38343?

It affects 1 product.


Products: Kylephillips Nested Pages.

## How do I fix CVE-2021-38343?

No fix has been published for CVE-2021-38343 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-38343 being exploited?

There is no known exploitation of CVE-2021-38343 in the wild and no public exploit code.

## Other vulnerabilities in Kyle Phillips Nested Pages

- [CVE-2024-5943](https://insights.sbomify.com/CVE-2024-5943/): Nested Pages <= 3.2.7 - Cross-Site Request Forgery to Local File Inclusion (high 8.8)
- [CVE-2021-38342](https://insights.sbomify.com/CVE-2021-38342/): Nested Pages <= 3.1.15 Cross-Site Request Forgery to Arbitrary Post Deletion and Modification (high 8.1)
- [CVE-2023-49195](https://insights.sbomify.com/CVE-2023-49195/): WordPress Nested Pages Plugin <= 3.2.6 is vulnerable to Cross Site Scripting (XSS) (medium 5.9)
- [CVE-2024-8759](https://insights.sbomify.com/CVE-2024-8759/): Nested Pages <= 3.2.8 - Editor+ Stored XSS (medium 4.8)
- [CVE-2025-0718](https://insights.sbomify.com/CVE-2025-0718/): Nested Pages < 3.2.13 - Contributor+ Stored XSS (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-38343 and fix it if it is affected.

What it is: CVE-2021-38343 is a medium-severity vulnerability in Kyle Phillips Nested Pages, published on 30 Aug 2021. 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-2021-38343 in the wild and no public exploit code.

Affected product: Kyle Phillips Nested Pages. 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-2021-38343/ (Markdown: https://insights.sbomify.com/CVE-2021-38343/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-38343
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-38343
- OSV: https://osv.dev/vulnerability/CVE-2021-38343

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-38343/
Summaries are generated and may contain mistakes; the official description above is the record.