# CVE-2022-0364: Modern Events Calendar Lite < 6.4.0 - Contributor+ Stored Cross Site Scripting

> Contributors can inject malicious scripts via unsanitized schedule parameters, allowing stored XSS attacks against other users.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 21 Mar 2022
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-wx62-47v6-8crm

## What is CVE-2022-0364?

CVE-2022-0364 is a medium-severity cross-site scripting vulnerability in Unknown Modern Events Calendar Lite, published on 21 Mar 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

The Modern Events Calendar Lite WordPress plugin before 6.4.0 does not sanitize and escape some of the Hourly Schedule parameters which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks

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

## Which versions are affected by CVE-2022-0364?

It affects 1 product.


Products: Webnus Modern Events Calendar Lite.

## How do I fix CVE-2022-0364?

No fix has been published for CVE-2022-0364 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-0364 being exploited?

There is no known exploitation of CVE-2022-0364 in the wild and no public exploit code.

## Other vulnerabilities in Unknown Modern Events Calendar Lite

- [CVE-2021-24946](https://insights.sbomify.com/CVE-2021-24946/): Modern Events Calendar < 6.1.5 - Unauthenticated Blind SQL Injection (critical 9.8)
- [CVE-2021-24149](https://insights.sbomify.com/CVE-2021-24149/): Modern Events Calendar Lite < 5.16.6 - Authenticated SQL Injection (high 8.8)
- [CVE-2021-24146](https://insights.sbomify.com/CVE-2021-24146/): Modern Events Calendar Lite < 5.16.5 - Unauthenticated Events Export (high 7.5)
- [CVE-2021-24145](https://insights.sbomify.com/CVE-2021-24145/): Modern Events Calendar Lite < 5.16.5 - Authenticated Arbitrary File Upload leading to RCE (high 7.2)
- [CVE-2021-24925](https://insights.sbomify.com/CVE-2021-24925/): Modern Events Calendar Lite < 6.1.5 - Reflected Cross-Site Scripting (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-0364 and fix it if it is affected.

What it is: CVE-2022-0364 is a medium-severity cross-site scripting vulnerability in Unknown Modern Events Calendar Lite, published on 21 Mar 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-0364 in the wild and no public exploit code.

Affected product: Unknown Modern Events Calendar Lite. 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-2022-0364/ (Markdown: https://insights.sbomify.com/CVE-2022-0364/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-0364
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-0364
- OSV: https://osv.dev/vulnerability/CVE-2022-0364

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-0364/
Summaries are generated and may contain mistakes; the official description above is the record.