# CVE-2021-22954: Cross Site Request Forgery in concrete5/concrete5

> Attackers can perform actions on behalf of authenticated users in Concrete CMS via cross-site request forgery.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 9 Feb 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-gr23-g276-xc73

## What is CVE-2021-22954?

CVE-2021-22954 is a high-severity vulnerability in Concretecms Concrete Cms, published on 9 Feb 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 cross-site request forgery vulnerability exists in Concrete CMS <v9 that could allow an attacker to make requests on behalf of other users.

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

## Which versions are affected by CVE-2021-22954?

2 open source packages ship an affected version, including concrete5/concrete5. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `concrete5/concrete5` | Packagist | All versions | 9.0.0 |
| `concrete5/concrete5` | Packagist | All versions | 9.0.0 |

Products: Concretecms Concrete Cms.

## How do I fix CVE-2021-22954?

Upgrade concrete5/concrete5 to 9.0.0 or later.

## Is CVE-2021-22954 being exploited?

There is no known exploitation of CVE-2021-22954 in the wild and no public exploit code.

## Other vulnerabilities in Concretecms Concrete Cms

- [CVE-2023-48648](https://insights.sbomify.com/CVE-2023-48648/): Concrete CMS allows unauthorized access because directories can be created with insecure permissions (critical 9.8)
- [CVE-2022-21829](https://insights.sbomify.com/CVE-2022-21829/): Code injection in concrete CMS (critical 9.8)
- [CVE-2021-22958](https://insights.sbomify.com/CVE-2021-22958/): Server-Side Request Forgery vulnerability in concrete5 (critical 9.8)
- [CVE-2021-40098](https://insights.sbomify.com/CVE-2021-40098/): Path traversal in n/a (critical 9.8)
- [CVE-2026-8134](https://insights.sbomify.com/CVE-2026-8134/): Concrete CMS Vulnerable to Relative Path Traversal (critical 9.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-22954 and fix it if it is affected.

What it is: CVE-2021-22954 is a high-severity vulnerability in Concretecms Concrete Cms, published on 9 Feb 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: There is no known exploitation of CVE-2021-22954 in the wild and no public exploit code.

Affected packages and fixed versions:
- concrete5/concrete5 (Packagist): affected all versions; fixed in 9.0.0
- concrete5/concrete5 (Packagist): affected all versions; fixed in 9.0.0

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-2021-22954/ (Markdown: https://insights.sbomify.com/CVE-2021-22954/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-22954
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-22954
- OSV: https://osv.dev/vulnerability/CVE-2021-22954

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-22954/
Summaries are generated and may contain mistakes; the official description above is the record.