# CVE-2021-24305: Target First Plugin 2.0 - Unauthenticated Stored XSS via Licence Key

> Unauthenticated attackers can inject malicious scripts via the license key parameter, potentially leading to session hijacking or site compromise.

- **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:** 24 May 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-58qm-mv3r-rg7r

## What is CVE-2021-24305?

CVE-2021-24305 is a medium-severity cross-site scripting vulnerability in TargetFirst Target First Plugin, published on 24 May 2021. 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 Target First WordPress Plugin v2.0, also previously known as Watcheezy, suffers from a critical unauthenticated stored XSS vulnerability. An attacker could change the licence key value through a POST on any URL with the 'weeWzKey' parameter that will be save as the 'weeID option and is not sanitized.

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

## Which versions are affected by CVE-2021-24305?

It affects 1 product.


Products: Targetfirst Watcheezy.

## How do I fix CVE-2021-24305?

No fix has been published for CVE-2021-24305 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24305 being exploited?

There is no known exploitation of CVE-2021-24305 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24305 and fix it if it is affected.

What it is: CVE-2021-24305 is a medium-severity cross-site scripting vulnerability in TargetFirst Target First Plugin, published on 24 May 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-24305 in the wild and no public exploit code.

Affected product: TargetFirst Target First Plugin. 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-2021-24305/ (Markdown: https://insights.sbomify.com/CVE-2021-24305/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24305
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24305
- OSV: https://osv.dev/vulnerability/CVE-2021-24305

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-24305/
Summaries are generated and may contain mistakes; the official description above is the record.