What’s Vulnerable › Vulnerabilities

CVE-2021-3819: Cross-Site Request Forgery (CSRF) in firefly-iii/firefly-iii

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-09-27 · updated 2026-06-17
• Weakness: CWE-352

Description

firefly-iii is vulnerable to Cross-Site Request Forgery (CSRF)

Affected products

• firefly-iii/firefly-iii: before 5.6.1 — fixed in 5.6.1

How to fix

Upgrade to a fixed version: firefly-iii/firefly-iii 5.6.1. Check the vendor advisory for mitigations.

References

• https://github.com/firefly-iii/firefly-iii/commit/578f350498b75f31d321c78a608c7f7b3b7b07e9
• https://huntr.dev/bounties/da82f7b6-4ffc-4109-87a4-a2a790bd44e5
• https://github.com/firefly-iii/firefly-iii/commit/578f350498b75f31d321c78a608c7f7b3b7b07e9
• https://huntr.dev/bounties/da82f7b6-4ffc-4109-87a4-a2a790bd44e5

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