# CVE-2023-4687: PageLayer < 1.7.7 - Unauthenticated Stored XSS

> Unauthenticated attackers can inject malicious scripts into scheduled post headers or footers, potentially leading to code execution or account takeover.

- **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:** 16 Oct 2023
- **Updated:** 23 Apr 2025
- **Also known as:** GHSA-mqx8-vg45-6p4q

## What is CVE-2023-4687?

CVE-2023-4687 is a medium-severity cross-site scripting vulnerability in Unknown Page Builder: Pagelayer, published on 16 Oct 2023. 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 Page Builder: Pagelayer WordPress plugin before 1.7.7 doesn't prevent unauthenticated attackers from updating a post's header or footer code on scheduled posts.

## Which versions are affected by CVE-2023-4687?

It affects 1 product.


Products: Pagelayer Pagelayer.

## How do I fix CVE-2023-4687?

No fix has been published for CVE-2023-4687 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-4687 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4687 exists.

## Other vulnerabilities in Unknown Page Builder: Pagelayer

- [CVE-2020-35944](https://insights.sbomify.com/CVE-2020-35944/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2020-35947](https://insights.sbomify.com/CVE-2020-35947/): Missing authorization in n/a (high 7.4)
- [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)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-4687 and fix it if it is affected.

What it is: CVE-2023-4687 is a medium-severity cross-site scripting vulnerability in Unknown Page Builder: Pagelayer, published on 16 Oct 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4687 exists.

Affected product: Unknown Page Builder: Pagelayer. 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-2023-4687/ (Markdown: https://insights.sbomify.com/CVE-2023-4687/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-4687
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-4687
- OSV: https://osv.dev/vulnerability/CVE-2023-4687

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-4687/
Summaries are generated and may contain mistakes; the official description above is the record.