# CVE-2021-4362: Missing authorization in Social Sharing Plugin – Kiwi

> Unauthenticated attackers can read and modify arbitrary options via a missing capability check, potentially leading to site takeover.

- **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:** 7 Jun 2023
- **Updated:** 28 Dec 2024
- **Also known as:** GHSA-v95r-22v9-3fc7

## What is CVE-2021-4362?

CVE-2021-4362 is a critical missing authorization vulnerability in wpkube Social Sharing Plugin – Kiwi, published on 7 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Kiwi Social Share plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the kiwi_social_share_get_option() function called via the kiwi_social_share_get_option AJAX action in version 2.1.0. This makes it possible for unauthenticated attackers to read and modify arbitrary options on a WordPress site that can be used for complete site takeover. This was a previously fixed vulnerability that was reintroduced in this version.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2021-4362?

It affects 1 product.


Products: Wpkube Kiwi Social Share.

## How do I fix CVE-2021-4362?

No fix has been published for CVE-2021-4362 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-4362 being exploited?

There is no known exploitation of CVE-2021-4362 in the wild and no public exploit code.

## Other vulnerabilities in wpkube Social Sharing Plugin – Kiwi

- [CVE-2024-3228](https://insights.sbomify.com/CVE-2024-3228/): Social Sharing Plugin – Kiwi <= 2.1.7 - Information Disclosure (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-4362 and fix it if it is affected.

What it is: CVE-2021-4362 is a critical missing authorization vulnerability in wpkube Social Sharing Plugin – Kiwi, published on 7 Jun 2023. 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-2021-4362 in the wild and no public exploit code.

Affected product: wpkube Social Sharing Plugin – Kiwi. 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-2021-4362/ (Markdown: https://insights.sbomify.com/CVE-2021-4362/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-4362
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-4362
- OSV: https://osv.dev/vulnerability/CVE-2021-4362

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-4362/
Summaries are generated and may contain mistakes; the official description above is the record.