# CVE-2020-36534: easyii CMS out cross-site request forgery

> Attackers can force authenticated users to perform unintended actions via CSRF in the easyii CMS sign-out function.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 3 Jun 2022
- **Updated:** 15 Apr 2025
- **Also known as:** CVE-2022-3772, CVE-2022-39390, GHSA-3x3w-vcjx-7796

## What is CVE-2020-36534?

CVE-2020-36534 is a medium-severity vulnerability in easyii CMS, published on 3 Jun 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A vulnerability was found in easyii CMS. It has been classified as problematic. Affected is an unknown function of the file /admin/sign/out. The manipulation leads to cross site request forgery. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2020-36534?

2 open source packages ship an affected version, including noumo/easyii. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `noumo/easyii` | Packagist | All versions to 0.9 | None |
| `noumo/easyii` | Packagist | All versions to 0.9 | None |

Products: Easyiicms Easyiicms.

## How do I fix CVE-2020-36534?

No fix has been published for CVE-2020-36534 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-36534 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36534 exists.

## Other vulnerabilities in easyii CMS

- [CVE-2022-3771](https://insights.sbomify.com/CVE-2022-3771/): easyii CMS File Upload Management Upload.php file unrestricted upload (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-36534 and fix it if it is affected.

What it is: CVE-2020-36534 is a medium-severity vulnerability in easyii CMS, published on 3 Jun 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36534 exists.

Affected packages and fixed versions:
- noumo/easyii (Packagist): affected all versions up to 0.9; no fix listed
- noumo/easyii (Packagist): affected all versions up to 0.9; no fix listed

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-2020-36534/ (Markdown: https://insights.sbomify.com/CVE-2020-36534/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-36534
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-36534
- OSV: https://osv.dev/vulnerability/CVE-2020-36534

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-36534/
Summaries are generated and may contain mistakes; the official description above is the record.