# CVE-2024-6870: Responsive Lightbox & Gallery <= 2.4.7 - Authenticated (Author+) Stored Cross-Site Scripting via File Upload

> Authenticated attackers with Author access can inject arbitrary scripts via file uploads in the Responsive Lightbox & Gallery plugin.

- **Severity:** Medium 6.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 22 Aug 2024
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-455v-j4c3-4fqr

## What is CVE-2024-6870?

CVE-2024-6870 is a medium-severity cross-site scripting vulnerability in dfactory Responsive Lightbox & Gallery, published on 22 Aug 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via file uploads in all versions up to, and including, 2.4.7 due to insufficient input sanitization and output escaping affecting the rl_upload_image AJAX endpoint. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the 3gp2 file.

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

## Which versions are affected by CVE-2024-6870?

It affects 1 product.


Products: Dfactory Responsive Lightbox.

## How do I fix CVE-2024-6870?

No fix has been published for CVE-2024-6870 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-6870 being exploited?

There is no known exploitation of CVE-2024-6870 in the wild and no public exploit code.

## Other vulnerabilities in dfactory Responsive Lightbox & Gallery

- [CVE-2025-3742](https://insights.sbomify.com/CVE-2025-3742/): Responsive Lightbox & Gallery < 2.5.1 - Contributor+ Stored XSS (medium 6.8)
- [CVE-2017-2243](https://insights.sbomify.com/CVE-2017-2243/): Cross-site scripting in Responsive Lightbox (medium 6.1)
- [CVE-2023-49174](https://insights.sbomify.com/CVE-2023-49174/): WordPress Responsive Lightbox Plugin <= 2.4.5 is vulnerable to Cross Site Scripting (XSS) (medium 5.9)
- [CVE-2025-5093](https://insights.sbomify.com/CVE-2025-5093/): Responsive Lightbox & Gallery < 2.5.2 - Contributor+ Stored XSS (medium 5.4)
- [CVE-2024-43924](https://insights.sbomify.com/CVE-2024-43924/): WordPress Responsive Lightbox & Gallery plugin <= 2.4.7 - Broken Access Control vulnerability (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-6870 and fix it if it is affected.

What it is: CVE-2024-6870 is a medium-severity cross-site scripting vulnerability in dfactory Responsive Lightbox & Gallery, published on 22 Aug 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-6870 in the wild and no public exploit code.

Affected product: dfactory Responsive Lightbox & 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-2024-6870/ (Markdown: https://insights.sbomify.com/CVE-2024-6870/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-6870
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-6870
- OSV: https://osv.dev/vulnerability/CVE-2024-6870

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-6870/
Summaries are generated and may contain mistakes; the official description above is the record.