# CVE-2021-24343: iFlyChat – WordPress Chat < 4.7.0 - Admin+ Stored Cross-Site Scripting (XSS)

> Authenticated attackers can inject malicious scripts via the APP ID setting in the iFlyChat WordPress plugin, potentially leading to session hijacking or code execution.

- **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:** 7 Jun 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-3gj8-rw59-4xgx

## What is CVE-2021-24343?

CVE-2021-24343 is a medium-severity cross-site scripting vulnerability in Unknown iFlyChat – WordPress Chat, published on 7 Jun 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

The iFlyChat WordPress plugin before 4.7.0 does not sanitise its APP ID setting before outputting it back in the page, leading to an authenticated Stored Cross-Site Scripting issue

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

## Which versions are affected by CVE-2021-24343?

It affects 1 product.


Products: Iflychat Iflychat.

## How do I fix CVE-2021-24343?

No fix has been published for CVE-2021-24343 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24343 being exploited?

There is no known exploitation of CVE-2021-24343 in the wild and no public exploit code.

## Other vulnerabilities in Unknown iFlyChat – WordPress Chat

- [CVE-2024-31108](https://insights.sbomify.com/CVE-2024-31108/): WordPress iFlyChat plugin <= 4.7.2 - Cross Site Scripting (XSS) vulnerability (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24343 and fix it if it is affected.

What it is: CVE-2021-24343 is a medium-severity cross-site scripting vulnerability in Unknown iFlyChat – WordPress Chat, published on 7 Jun 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-2021-24343 in the wild and no public exploit code.

Affected product: Unknown iFlyChat – WordPress Chat. 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-2021-24343/ (Markdown: https://insights.sbomify.com/CVE-2021-24343/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24343
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24343
- OSV: https://osv.dev/vulnerability/CVE-2021-24343

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-24343/
Summaries are generated and may contain mistakes; the official description above is the record.