# CVE-2021-24738: Logo Carousel < 3.4.2 - Contributor+ Stored Cross-Site Scripting

> Contributors can inject malicious scripts via the Logo Margin option, potentially leading to code execution or account takeover.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **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:** 21 Dec 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-jm24-qrrg-77rv

## What is CVE-2021-24738?

CVE-2021-24738 is a medium-severity cross-site scripting vulnerability in Unknown Logo Carousel – Logo Slider, Logo Showcase, and Clients Logo Gallery, published on 21 Dec 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

The Logo Carousel WordPress plugin before 3.4.2 does not validate and escape the "Logo Margin" carousel option, which could allow users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks

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

## Which versions are affected by CVE-2021-24738?

It affects 1 product.


Products: Shapedplugin Logo Carousel.

## How do I fix CVE-2021-24738?

No fix has been published for CVE-2021-24738 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24738 being exploited?

There is no known exploitation of CVE-2021-24738 in the wild and no public exploit code.

## Other vulnerabilities in Unknown Logo Carousel – Logo Slider, Logo Showcase, and Clients Logo Gallery

- [CVE-2021-24739](https://insights.sbomify.com/CVE-2021-24739/): Logo Carousel < 3.4.2 - Unauthorised Private Post Access (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24738 and fix it if it is affected.

What it is: CVE-2021-24738 is a medium-severity cross-site scripting vulnerability in Unknown Logo Carousel – Logo Slider, Logo Showcase, and Clients Logo Gallery, published on 21 Dec 2021. 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-2021-24738 in the wild and no public exploit code.

Affected product: Unknown Logo Carousel – Logo Slider, Logo Showcase, and Clients Logo Gallery. 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-2021-24738/ (Markdown: https://insights.sbomify.com/CVE-2021-24738/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24738
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24738
- OSV: https://osv.dev/vulnerability/CVE-2021-24738

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-24738/
Summaries are generated and may contain mistakes; the official description above is the record.