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MEDIUM severity

CVE-2023-2160 — modoboa

MEDIUMFix: modoboa/modoboa@130257c

CVE-2023-2160 is a medium-severity (CVSS 6.3) CWE-521 vulnerability in modoboa. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for modoboa — see the affected versions and patch details below.

Weak Password Requirements in modoboa/modoboa

Also known asGHSA-9gxx-32p7-ff7mPYSEC-2023-34
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 9, 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-2023-2160.

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk-0.00%
Lower risk than most CVEs50th percentile — riskier than 50% of all scored CVEsHighest risk
0.00%0.37%0.75%1.12%0.3%0.6%May 26Sep 26Nov 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
🐍modoboa

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

Description

Modoboa 2.0.5 and prior allows users to set unsafe passwords, such as 1 or HACK. This issue is fixed in commit 130257c96a2392ada795785a91178e656e27015c and is part of version 2.1.0.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPImodoboaall versions2.1.0pip install --upgrade 'modoboa==2.1.0'

Affected Products

1 product · 1 configurations
Application
modoboamodoboa
< 2.1.0
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.

Weak Password Requirements in GitHub repository modoboa/modoboa prior to…

huntr.devNVDApr 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 modoboa, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update modoboa to 2.1.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-2160 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

Modoboa 2.0.5 and prior allows users to set unsafe passwords, such as `1` or `HACK`. This issue is fixed in commit 130257c96a2392ada795785a91178e656e27015c and is part of version 2.1.0.
O3 Security · Impact-Aware SCA

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CVE-2023-2160: modoboa — Fixed in 2.1.0