# CVE-2021-24736: Shared Files < 1.6.57 - Admin+ Stored Cross-Site Scripting

> An attacker with admin privileges can inject malicious scripts via unsanitized settings, leading to stored cross-site scripting attacks against other users.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 18 Oct 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-hvpq-m9vj-27gf

## What is CVE-2021-24736?

CVE-2021-24736 is a medium-severity cross-site scripting vulnerability in Unknown Easy Download Manager and File Sharing Plugin with frontend file upload – a better Media Library — Shared Files, published on 18 Oct 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

The Easy Download Manager and File Sharing Plugin with frontend file upload – a better Media Library — Shared Files WordPress plugin before 1.6.57 does not sanitise and escape some of its settings before outputting them in attributes, which could lead to Stored Cross-Site Scripting issues.

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

## Which versions are affected by CVE-2021-24736?

It affects 1 product.


Products: Tammersoft Shared Files.

## How do I fix CVE-2021-24736?

No fix has been published for CVE-2021-24736 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24736 being exploited?

There is no known exploitation of CVE-2021-24736 in the wild and no public exploit code.

## Other vulnerabilities in Unknown Easy Download Manager and File Sharing Plugin with frontend file upload – a better Media Library — Shared Files

- [CVE-2023-4819](https://insights.sbomify.com/CVE-2023-4819/): Shared Files < 1.7.6 - Unauthenticated Stored Cross-Site Scripting (medium 6.1)
- [CVE-2021-24856](https://insights.sbomify.com/CVE-2021-24856/): Shared Files < 1.6.61 - Admin+ Stored Cross-Site Scripting (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24736 and fix it if it is affected.

What it is: CVE-2021-24736 is a medium-severity cross-site scripting vulnerability in Unknown Easy Download Manager and File Sharing Plugin with frontend file upload – a better Media Library — Shared Files, published on 18 Oct 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-24736 in the wild and no public exploit code.

Affected product: Unknown Easy Download Manager and File Sharing Plugin with frontend file upload – a better Media Library — Shared Files. 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-2021-24736/ (Markdown: https://insights.sbomify.com/CVE-2021-24736/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24736
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24736
- OSV: https://osv.dev/vulnerability/CVE-2021-24736

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-24736/
Summaries are generated and may contain mistakes; the official description above is the record.