# CVE-2022-4555: WP Shamsi <= 4.1.0 - Missing Authorization to Arbitrary Plugin Deactivation

> Unauthenticated attackers can deactivate arbitrary plugins, including security tools, due to a missing capability check in the WP Shamsi plugin.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Dec 2022
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-2pq5-28h7-2x78

## What is CVE-2022-4555?

CVE-2022-4555 is a medium-severity missing authorization vulnerability in wpvar WP Shamsi – افزونه تاریخ شمسی و فارسی ساز وردپرس, published on 16 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The WP Shamsi plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the deactivate() function hooked via init() in versions up to, and including, 4.1.0. This makes it possible for unauthenticated attackers to deactivate arbitrary plugins on the site. This can be used to deactivate security plugins that aids in exploiting other vulnerabilities.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2022-4555?

It affects 1 product.


Products: Wpvar Wp Shamsi.

## How do I fix CVE-2022-4555?

No fix has been published for CVE-2022-4555 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-4555 being exploited?

There is no known exploitation of CVE-2022-4555 in the wild and no public exploit code.

## Other vulnerabilities in wpvar WP Shamsi – افزونه تاریخ شمسی و فارسی ساز وردپرس

- [CVE-2023-0335](https://insights.sbomify.com/CVE-2023-0335/): WP Shamsi <= 4.3.3 - Subscriber+ Attachment Deletion (medium 6.5)
- [CVE-2022-38058](https://insights.sbomify.com/CVE-2022-38058/): WordPress WP Shamsi plugin <= 4.1.1 - Authenticated Plugin Setting change vulnerability (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-4555 and fix it if it is affected.

What it is: CVE-2022-4555 is a medium-severity missing authorization vulnerability in wpvar WP Shamsi – افزونه تاریخ شمسی و فارسی ساز وردپرس, published on 16 Dec 2022. 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-2022-4555 in the wild and no public exploit code.

Affected product: wpvar WP Shamsi – افزونه تاریخ شمسی و فارسی ساز وردپرس. 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-2022-4555/ (Markdown: https://insights.sbomify.com/CVE-2022-4555/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-4555
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-4555
- OSV: https://osv.dev/vulnerability/CVE-2022-4555

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-4555/
Summaries are generated and may contain mistakes; the official description above is the record.