Cross-site Request Forgery (CSRF) Affecting grumpydictator/firefly-iii package, versions >=0.0.0, <5.6.3


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.07% (33rd percentile)

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  • Snyk IDSNYK-PHP-GRUMPYDICTATORFIREFLYIII-1768026
  • published28 Oct 2021
  • disclosed28 Oct 2021
  • creditUnknown

Introduced: 28 Oct 2021

CVE-2021-3900  (opens in a new tab)
CWE-352  (opens in a new tab)

How to fix?

Upgrade grumpydictator/firefly-iii to version 5.6.3 or higher.

Overview

grumpydictator/firefly-iii is a personal finances manager.

Affected versions of this package are vulnerable to Cross-site Request Forgery (CSRF). This vulnerability is capable of tricking admin users to duplicate rule and modifying order of rule groups.

POC:

<a href="https://demo.firefly-iii.org/rules/duplicate/1">Click Me!</a>
<a href="https://demo.firefly-iii.org/rule-groups/up/1">Click Me!</a>
<a href="https://demo.firefly-iii.org/rule-groups/down/1">Click Me!</a>

References

CVSS Scores

version 3.1