# CVE-2020-29045: Deserialization in n/a

> Remote attackers can execute arbitrary code via unsafe deserialization of the fdm_cart cookie in the food-and-drink-menu WordPress plugin.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Mar 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-467c-6whc-qp44

## What is CVE-2020-29045?

CVE-2020-29045 is a critical unsafe deserialization vulnerability in n/a, published on 11 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The food-and-drink-menu plugin through 2.2.0 for WordPress allows remote attackers to execute arbitrary code because of an unserialize operation on the fdm_cart cookie in load_cart_from_cookie in includes/class-cart-manager.php.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2020-29045?

It affects 1 product.


Products: Fivestarplugins Five Star Restaurant Menu.

## How do I fix CVE-2020-29045?

No fix has been published for CVE-2020-29045 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-29045 being exploited?

There is no known exploitation of CVE-2020-29045 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2023-5340](https://insights.sbomify.com/CVE-2023-5340/): Five Star Restaurant Menu and Food Ordering < 2.4.11 - Unauthenticated PHP Object Injection (critical 9.8)
- [CVE-2023-34017](https://insights.sbomify.com/CVE-2023-34017/): WordPress Five Star Restaurant Reservations Plugin <= 2.6.7 is vulnerable to Cross Site Scripting (XSS) (high 7.1)
- [CVE-2024-24838](https://insights.sbomify.com/CVE-2024-24838/): WordPress Five Star Restaurant Reviews Plugin <= 2.3.5 is vulnerable to Cross Site Scripting (XSS) (medium 6.5)
- [CVE-2024-5459](https://insights.sbomify.com/CVE-2024-5459/): Restaurant Menu and Food Ordering <= 2.4.16 - Missing Authorization to Menu Creation (medium 4.3)
- [CVE-2023-37985](https://insights.sbomify.com/CVE-2023-37985/): WordPress Five Star Restaurant Menu Plugin <= 2.4.6 is vulnerable to Cross Site Request Forgery (CSRF) (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-29045 and fix it if it is affected.

What it is: CVE-2020-29045 is a critical unsafe deserialization vulnerability in n/a, published on 11 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-29045 in the wild and no public exploit code.

Affected product: n/a. 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-2020-29045/ (Markdown: https://insights.sbomify.com/CVE-2020-29045/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-29045
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-29045
- OSV: https://osv.dev/vulnerability/CVE-2020-29045

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-29045/
Summaries are generated and may contain mistakes; the official description above is the record.