# CVE-2020-35947: Missing authorization in n/a

> Authenticated users can modify pages and inject scripts due to missing permission checks on AJAX endpoints in the PageLayer plugin.

- **Severity:** High 7.4 (`CVSS:3.1/AC:L/AV:N/A:L/C:L/I:L/PR:L/S:C/UI: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:** 1 Jan 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-xhw5-6m93-pmpj

## What is CVE-2020-35947?

CVE-2020-35947 is a high-severity missing authorization vulnerability in n/a, published on 1 Jan 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An issue was discovered in the PageLayer plugin before 1.1.2 for WordPress. Nearly all of the AJAX action endpoints lacked permission checks, allowing these actions to be executed by anyone authenticated on the site. This happened because nonces were used as a means of authorization, but a nonce was present in a publicly viewable page. The greatest impact was the pagelayer_save_content function that allowed pages to be modified and allowed XSS to occur.

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

## Which versions are affected by CVE-2020-35947?

It affects 1 product.


Products: Pagelayer Pagelayer.

## How do I fix CVE-2020-35947?

No fix has been published for CVE-2020-35947 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-35947 being exploited?

There is no known exploitation of CVE-2020-35947 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-35944](https://insights.sbomify.com/CVE-2020-35944/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2024-30465](https://insights.sbomify.com/CVE-2024-30465/): WordPress PageLayer plugin <= 1.8.1 - Broken Access Control vulnerability (medium 6.5)
- [CVE-2024-2504](https://insights.sbomify.com/CVE-2024-2504/): Cross-site scripting in Page Builder: Pagelayer – Drag and Drop website builder (medium 6.4)
- [CVE-2024-2127](https://insights.sbomify.com/CVE-2024-2127/): Cross-site scripting in Page Builder: Pagelayer – Drag and Drop website builder (medium 6.4)
- [CVE-2023-4687](https://insights.sbomify.com/CVE-2023-4687/): PageLayer < 1.7.7 - Unauthenticated Stored XSS (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-35947 and fix it if it is affected.

What it is: CVE-2020-35947 is a high-severity missing authorization vulnerability in n/a, published on 1 Jan 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-35947 in the wild and no public exploit code.

Affected product: n/a. 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-2020-35947/ (Markdown: https://insights.sbomify.com/CVE-2020-35947/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-35947
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-35947
- OSV: https://osv.dev/vulnerability/CVE-2020-35947

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-35947/
Summaries are generated and may contain mistakes; the official description above is the record.