CVE-2021-3901 json
Cross-Site Request Forgery (CSRF) in firefly-iii/firefly-iii
published 2021-10-27 5 y ago modified 2026-06-17 4 mo ago also GHSA-rqgp-ccph-5w65 , EUVD-2021-2255
- cvss
- 3.5
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
firefly-iii is vulnerable to Cross-Site Request Forgery (CSRF)
Patch / fix
Exploit prediction
0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- huntr.dev https://huntr.dev/bounties/62508fdc-c26b-4312-bf75-fd3a3f997464 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 3.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| GitHub | 3.0 | 3.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | grumpydictator/firefly-iii | <=5.6.2 |
no fix listed |
Affected products
- firefly-iii firefly-iii/firefly-iii
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
References
-
github.com
/firefly-iii/firefly-iii/commit/b42d8d1e305cad70d9b83b33cd8e0d7a4b2060c2
web, patch, third-party-advisory
-
huntr.dev
/bounties/62508fdc-c26b-4312-bf75-fd3a3f997464
web, exploit, issue-tracking, patch, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-3901
advisory
-
github.com
/firefly-iii/firefly-iii
package
Sources
- CVE List CVE-2021-3901
- GitHub Advisory GHSA-rqgp-ccph-5w65
- NVD CVE-2021-3901
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.