CVE-2021-3819
PHP vulnerability analysis and mitigation

Overview

CVE-2021-3819 is a Cross-Site Request Forgery (CSRF) vulnerability discovered in firefly-iii, a personal finance manager. The vulnerability was identified and disclosed on September 20, 2021 (CVE MITRE).

Technical details

The vulnerability is classified as CWE-352 (Cross-Site Request Forgery) according to the Common Weakness Enumeration system. The issue was found in the currency management functionality of firefly-iii, where certain GET routes were vulnerable to CSRF attacks (NVD CNA Status).

Impact

A successful exploitation of this CSRF vulnerability could allow attackers to perform unauthorized actions in the context of an authenticated user's session, potentially manipulating currency settings and other related functionalities in the firefly-iii application (HUNTR).

Mitigation and workarounds

The vulnerability was patched by converting GET routes to POST routes and implementing proper CSRF protection. Users should upgrade to the patched version of firefly-iii to protect against this vulnerability (GitHub Commit).

Additional resources


SourceThis report was generated using AI

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