# CVE-2023-51504: WordPress Dan's Embedder for Google Calendar Plugin <= 1.2 is vulnerable to Cross Site Scripting (XSS)

> An attacker can inject malicious scripts into the Google Calendar embedder plugin, potentially compromising user sessions or site integrity.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 5 Feb 2024
- **Updated:** 28 Apr 2026
- **Also known as:** GHSA-jr3p-prh6-2crg

## What is CVE-2023-51504?

CVE-2023-51504 is a medium-severity cross-site scripting vulnerability in Dan's Embedder for Google Calendar, published on 5 Feb 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Dan Dulaney Dan's Embedder for Google Calendar allows Stored XSS.This issue affects Dan's Embedder for Google Calendar: from n/a through 1.2.

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

## Which versions are affected by CVE-2023-51504?

It affects 1 product.


Products: Dandulaney Dan\'s Embedder for Google Calendar.

## How do I fix CVE-2023-51504?

No fix has been published for CVE-2023-51504 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-51504 being exploited?

There is no known exploitation of CVE-2023-51504 in the wild and no public exploit code.

Public exploit code:

- This is a dockerized reproduction of the MotoCMS SQL injection (cf exploit db)  (github_poc): https://github.com/Sybelle03/CVE-2023-51504

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-51504 and fix it if it is affected.

What it is: CVE-2023-51504 is a medium-severity cross-site scripting vulnerability in Dan's Embedder for Google Calendar, published on 5 Feb 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-51504 in the wild and no public exploit code.

Affected product: Dan's Embedder for Google Calendar. 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-2023-51504/ (Markdown: https://insights.sbomify.com/CVE-2023-51504/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-51504
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-51504
- OSV: https://osv.dev/vulnerability/CVE-2023-51504

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-51504/
Summaries are generated and may contain mistakes; the official description above is the record.