Project Firefly III has incorrect access control in the webhook management component
Incorrect access control in the webhook management component of Project Firefly III v6.5.9 allows attackers to scan internal resources via a crafted POST request.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | grumpydictator/firefly-iii | <= 6.5.9 | no fix |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N- Weakness (CWE)
CWE-284- Platform
- Composer
- Package
grumpydictator/firefly-iii- Disclosed
- 15.06.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-9mmg-q95p-gp67 - CC BY 4.0
Vulnerability history: grumpydictator/firefly-iii
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 26
- First → latest
- 08.2021 06.2026
- Without a fix
- 3
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 1
- Medium 22
- Low 2
Disclosures per year
- 2021: 12
- 2022: 5
- 2023: 3
- 2024: 3
- 2025: 0
- 2026: 3
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Project Firefly III has incorrect access control in the webhook management component this entry
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