# CVE-2024-13239: Two-factor Authentication (TFA) - Moderately critical - Access bypass - SA-CONTRIB-2024-003

> Attackers can bypass two-factor authentication in the Drupal TFA module, allowing unauthorized access to user accounts.

- **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:** Yes
- **Published:** 9 Jan 2025
- **Updated:** 10 Jan 2025
- **Also known as:** DRUPAL-CONTRIB-2024-003, GHSA-gqf5-wjqv-v83c

## What is CVE-2024-13239?

CVE-2024-13239 is a critical authentication bypass vulnerability in Drupal Two-factor Authentication (TFA), published on 9 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Weak Authentication vulnerability in Drupal Two-factor Authentication (TFA) allows Authentication Abuse.This issue affects Two-factor Authentication (TFA): from 0.0.0 before 1.5.0.

Weakness: CWE-1390 (Weak Authentication)

## Which versions are affected by CVE-2024-13239?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `drupal/tfa` | Packagist:https://packages.drupal.org/8 | All versions | 1.5.0 |

Products: Two-Factor Authentication Project Two-Factor Authentication.

## How do I fix CVE-2024-13239?

Upgrade to a fixed version.

## Is CVE-2024-13239 being exploited?

There is no known exploitation of CVE-2024-13239 in the wild and no public exploit code.

## Other vulnerabilities in Drupal Two-factor Authentication (TFA)

- [CVE-2024-13279](https://insights.sbomify.com/CVE-2024-13279/): Two-factor Authentication (TFA) - Critical - Access bypass - SA-CONTRIB-2024-043 (critical 9.8)
- [CVE-2025-31694](https://insights.sbomify.com/CVE-2025-31694/): Two-factor Authentication (TFA) - Moderately critical - Access bypass - SA-CONTRIB-2025-023 (high 8.1)
- [CVE-2025-7030](https://insights.sbomify.com/CVE-2025-7030/): Two-factor Authentication (TFA) - Less critical - Access bypass - SA-CONTRIB-2025-085 (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-13239 and fix it if it is affected.

What it is: CVE-2024-13239 is a critical authentication bypass vulnerability in Drupal Two-factor Authentication (TFA), published on 9 Jan 2025. 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-2024-13239 in the wild and no public exploit code.

Affected product: Drupal Two-factor Authentication (TFA). 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-2024-13239/ (Markdown: https://insights.sbomify.com/CVE-2024-13239/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-13239
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-13239
- OSV: https://osv.dev/vulnerability/CVE-2024-13239

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-13239/
Summaries are generated and may contain mistakes; the official description above is the record.