What’s Vulnerable › Vulnerabilities

CVE-2021-3900: Cross-Site Request Forgery (CSRF) in firefly-iii/firefly-iii

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-10-27 · updated 2026-06-17
• Weakness: CWE-352

Description

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

Affected products

• firefly-iii/firefly-iii: through 5.6.2

References

• https://github.com/firefly-iii/firefly-iii/commit/c2c8c42ef3194d1aeba8c48240fe2e9063f77635
• https://huntr.dev/bounties/909e55b6-ef02-4143-92e4-bc3e8397db76
• https://github.com/firefly-iii/firefly-iii/commit/c2c8c42ef3194d1aeba8c48240fe2e9063f77635
• https://huntr.dev/bounties/909e55b6-ef02-4143-92e4-bc3e8397db76

Get alerted when CVE-2021-3900 or the next vulnerability affects your stack