# CVE-2026-47228: Admidio's CSRF in registration `send_login` mode resets arbitrary user passwords

> A missing CSRF check in Admidio's registration module allows attackers to reset arbitrary user passwords by tricking administrators into visiting a malicious page.

- **Severity:** Medium 5.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 12 Aug 2026
- **Updated:** 12 Aug 2026
- **Also known as:** GHSA-mx25-j3rc-6w2w

## What is CVE-2026-47228?

CVE-2026-47228 is a medium-severity vulnerability in admidio, published on 12 Aug 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Admidio is an open-source user management solution. `modules/registration.php` mode `send_login` regenerates a random password for `user_uuid_assigned`, stores its bcrypt hash in `adm_users.usr_password`, and emails the cleartext to that user. Every other state-changing mode in the same file (`assign_member`, `assign_user`, `delete_user`, `create_user`) calls `SecurityUtils::validateCsrfToken($_POST['adm_csrf_token'])` first; the `send_login` branch does not. Prior to version 5.0.10, page visited by a registration-administrator can issue the request as a top-level navigation, the browser sends the admin's `SameSite=Lax` cookies, and the server resets the chosen user's password without any further interaction from the admin. Version 5.0.10 fixes the issue.

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

## Which versions are affected by CVE-2026-47228?

2 open source packages ship an affected version, including admidio/admidio.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `admidio/admidio` | Packagist | All versions | 5.0.10 |
| `admidio/admidio` | Packagist | All versions | 5.0.10 |

## How do I fix CVE-2026-47228?

Upgrade admidio/admidio to 5.0.10 or later.

## Is CVE-2026-47228 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47228 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-47228 and fix it if it is affected.

What it is: CVE-2026-47228 is a medium-severity vulnerability in admidio, published on 12 Aug 2026. An attacker needs administrator access to exploit it, 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-2026-47228 exists.

Affected packages and fixed versions:
- admidio/admidio (Packagist): affected all versions; fixed in 5.0.10
- admidio/admidio (Packagist): affected all versions; fixed in 5.0.10

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-2026-47228/ (Markdown: https://insights.sbomify.com/CVE-2026-47228/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-47228
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-47228
- OSV: https://osv.dev/vulnerability/CVE-2026-47228

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-47228/
Summaries are generated and may contain mistakes; the official description above is the record.