CVE-2021-3846: Unrestricted File Upload vulnerability in Firefly III

high Affects grumpydictator/firefly-iii. Feed 2026.10.29.1, updated 2026-10-28; published 2022-05-24; advisory modified 2024-02-16.

Unrestricted File Upload vulnerability in Firefly III

Package: grumpydictator/firefly-iii Composer
Affected versions: <5.6.2
Fixed in: 5.6.2
Severity: high CVSS 8.8
Exploitation: not on CISA KEV · EPSS 1% (55.8th percentile)
Published: 2022-05-24
Source: osv.dev

References

CWE-434

NVD record grumpydictator/firefly-iii advisories

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Related advisories

CVE-2019-13644 medium Firefly III vulnerable to stored XSS same package: grumpydictator/firefly-iii
CVE-2019-13645 medium Firefly III vulnerable to stored XSS same package: grumpydictator/firefly-iii
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CVE-2019-13647 medium Firefly III vulnerable to image-based stored XSS same package: grumpydictator/firefly-iii
CVE-2021-3663 medium No Restriction of Excessive Authentication Attempts in Firefly III same package: grumpydictator/firefly-iii
CVE-2023-0298 medium Improper Authorization in grumpydictator/firefly-iii same package: grumpydictator/firefly-iii