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MEDIUM severity

CVE-2023-0298 — firefly-iii

MEDIUMFix: firefly-iii/firefly-iii@db0500d

CVE-2023-0298 is a medium-severity (CVSS 6.5) CWE-863 vulnerability in grumpydictator/firefly-iii. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for grumpydictator/firefly-iii — see the affected versions and patch details below.

Incorrect Authorization in firefly-iii/firefly-iii

Also known asGHSA-7mc4-jp4f-v2j2
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Oct 30, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-0298.

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk+0.02%
Lower risk than most CVEs51th percentile — riskier than 51% of all scored CVEsHighest risk
0.00%0.38%0.76%1.14%0.2%0.6%May 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘grumpydictator/firefly-iii

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Incorrect Authorization in GitHub repository firefly-iii/firefly-iii prior to 5.8.0.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistgrumpydictator/firefly-iiiall versions5.8.0composer require grumpydictator/firefly-iii:^5.8.0

Affected Products

1 product · 1 configurations
Application
firefly iiifirefly-iii
< 5.8.0
range
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Incorrect Authorization in GitHub repository firefly-iii/firefly-iii pri…

huntr.devNVDJan 2023

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for grumpydictator/firefly-iii, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update grumpydictator/firefly-iii to 5.8.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-0298 is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

Incorrect Authorization in GitHub repository firefly-iii/firefly-iii prior to 5.8.0.
O3 Security · Impact-Aware SCA

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CVE-2023-0298: firefly-iii — Fixed in 5.8.0