# CVE-2022-2941: WP-UserOnline <= 2.88.0 - Authenticated (Admin+) Stored Cross-Site Scripting

> Administrators can inject JavaScript into WP-UserOnline settings, executing code on user pages in specific multi-site or unfiltered_html configurations.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 6 Sep 2022
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-pwp2-44q5-vv6j

## What is CVE-2022-2941?

CVE-2022-2941 is a medium-severity cross-site scripting vulnerability in gamerz WP-UserOnline, published on 6 Sep 2022. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The WP-UserOnline plugin for WordPress has multiple Stored Cross-Site Scripting vulnerabilities in versions up to, and including 2.88.0. This is due to the fact that all fields in the "Naming Conventions" section do not properly sanitize user input, nor escape it on output. This makes it possible for authenticated attackers, with administrative privileges, to inject JavaScript code into the setting that will execute whenever a user accesses the injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

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

## Which versions are affected by CVE-2022-2941?

It affects 1 product.


Products: Wp-Useronline Project Wp-Useronline.

## How do I fix CVE-2022-2941?

No fix has been published for CVE-2022-2941 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-2941 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-2941 exists.

Public exploit code:

- Wordpress Plugin WP-UserOnline 2.88.0 - Stored Cross Site Scripting (XSS) (exploitdb)

## Other vulnerabilities in gamerz WP-UserOnline

- [CVE-2022-2473](https://insights.sbomify.com/CVE-2022-2473/): WP-UserOnline <= 2.87.6 - Authenticated (Admin+) Stored Cross-Site Scripting (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-2941 and fix it if it is affected.

What it is: CVE-2022-2941 is a medium-severity cross-site scripting vulnerability in gamerz WP-UserOnline, published on 6 Sep 2022. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-2941 exists.

Affected product: gamerz WP-UserOnline. 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-2022-2941/ (Markdown: https://insights.sbomify.com/CVE-2022-2941/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-2941
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-2941
- OSV: https://osv.dev/vulnerability/CVE-2022-2941

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-2941/
Summaries are generated and may contain mistakes; the official description above is the record.