# CVE-2024-13226: A5 Custom Login Page <= 2.8.1 - Reflected XSS

> Attackers can inject malicious scripts via unsanitized parameters, potentially compromising high-privilege admin accounts in the A5 Custom Login Page plugin.

- **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:** 31 Jan 2025
- **Updated:** 24 Mar 2025
- **Also known as:** GHSA-25ff-84m3-7r6v

## What is CVE-2024-13226?

CVE-2024-13226 is a medium-severity cross-site scripting vulnerability in Unknown A5 Custom Login Page, published on 31 Jan 2025. 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 A5 Custom Login Page WordPress plugin through 2.8.1 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

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

## Which versions are affected by CVE-2024-13226?

It affects 1 product.


Products: Tepelstreel A5 Custom Login Page.

## How do I fix CVE-2024-13226?

No fix has been published for CVE-2024-13226 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-13226 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-13226 exists.

Public exploit code:

- A5 Custom Login Page - Reflected XSS (nuclei): http/cves/2024/CVE-2024-13226.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-13226 and fix it if it is affected.

What it is: CVE-2024-13226 is a medium-severity cross-site scripting vulnerability in Unknown A5 Custom Login Page, published on 31 Jan 2025. 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-2024-13226 exists.

Affected product: Unknown A5 Custom Login Page. 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-2024-13226/ (Markdown: https://insights.sbomify.com/CVE-2024-13226/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-13226
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-13226
- OSV: https://osv.dev/vulnerability/CVE-2024-13226

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-13226/
Summaries are generated and may contain mistakes; the official description above is the record.