# CVE-2021-4005: Cross Site Request Forgery in firefly-iii

Source: https://junglewise.ai/threats/cve-2021-4005-cross-site-request-forgery-in-firefly-iii  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2021-12-10  
License: CC BY 4.0 with a link back

CVE-2021-4005 · Severity: low · CVSS 3.1 · Published 2021-12-10

Cross Site Request Forgery in firefly-iii

Technologies: [grumpydictator/firefly-iii (Packagist)](https://junglewise.ai/threats/technologies/grumpydictator-firefly-iii). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2021-4005 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2021-4005 being exploited in the wild.

**How severe is CVE-2021-4005?** Low severity, with a CVSS score of 3.1, published 10 December 2021.

**Which products and versions are affected?** grumpydictator/firefly-iii (Packagist) ECOSYSTEM:introduced=0,fixed=5.6.5.

**Is there a fix for CVE-2021-4005?** Yes. grumpydictator/firefly-iii (Packagist): upgrade to 5.6.5 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2021-4005?** Check whether you run grumpydictator/firefly-iii (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- grumpydictator/firefly-iii (Packagist): upgrade to 5.6.5 or later

  ```sh
  composer require grumpydictator/firefly-iii:^5.6.5
  ```


## Affected products

- grumpydictator/firefly-iii (Packagist) ECOSYSTEM:introduced=0,fixed=5.6.5

## Identifiers

- CVE-2021-4005
- GHSA-hjhp-hwfj-hwf3

## Related threats

- [Project Firefly III SSRF in webhook management component](https://junglewise.ai/threats/cve-2026-50886-project-firefly-iii-ssrf-in-webhook-management-component)
- [Firefly III Stored XSS in Audit Log Entry via piggy bank name](https://junglewise.ai/threats/firefly-iii-stored-xss-in-audit-log-entry-via-piggy-bank-name-79c37ea2)
- [Firefly III user API endpoints expose all users' information to any authenticated user (IDOR)](https://junglewise.ai/threats/firefly-iii-user-api-endpoints-expose-all-users-information-to-any-28231c21)
- [Firefly III has a MFA bypass in oauth flow](https://junglewise.ai/threats/cve-2024-37893-firefly-iii-has-a-mfa-bypass-in-oauth-flow)
- [C5 Firefly III CSV Injection.](https://junglewise.ai/threats/c5-firefly-iii-csv-injection-f3c22e29)