How severe is CVE-2023-2227?

CVE-2023-2227 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-2227 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 44% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-2227?

CVE-2023-2227 affects Modoboa. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-2227?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-2227 published?

CVE-2023-2227 was published on 2023-04-21 and last updated on 2026-06-17.

CVE-2023-2227

CVE-2023-2227 is a critical-severity vulnerability in Modoboa with a CVSS 3.x base score of 9.1. Its EPSS exploit-prediction score of 44% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-285.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 44% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-285
Affected product: Modoboa
Published: 2023-04-21
Last modified: 2026-06-17

Description

Improper Authorization in GitHub repository modoboa/modoboa prior to 2.1.0.

Frequently asked questions

What is CVE-2023-2227?: Improper Authorization in GitHub repository modoboa/modoboa prior to 2.1.0.
How severe is CVE-2023-2227?: CVE-2023-2227 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-2227 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 44% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-2227?: CVE-2023-2227 affects Modoboa. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-2227?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-2227 published?: CVE-2023-2227 was published on 2023-04-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:modoboa:modoboa:*:*:*:*:*:*:*:*

More vulnerabilities in Modoboa

CVE-2023-0777 — Critical (CVSS 9.8): Authentication Bypass by Primary Weakness in GitHub repository modoboa/modoboa prior to 2.0.4.
CVE-2023-5690 — High (CVSS 8.8): Cross-Site Request Forgery (CSRF) in GitHub repository modoboa/modoboa prior to 2.2.2.
CVE-2026-27602 — High (CVSS 7.2): Modoboa is a mail hosting and management platform. Prior to version 2.7.1, `exec_cmd()` in `modoboa/lib/sysutils.py`…
CVE-2023-2228 — Medium (CVSS 6.8): Cross-Site Request Forgery (CSRF) in GitHub repository modoboa/modoboa prior to 2.1.0.
CVE-2023-0438 — Medium (CVSS 6.5): Cross-Site Request Forgery (CSRF) in GitHub repository modoboa/modoboa prior to 2.0.4.
CVE-2023-0398 — Medium (CVSS 6.5): Cross-Site Request Forgery (CSRF) in GitHub repository modoboa/modoboa prior to 2.0.4.

All CVEs affecting Modoboa →

Other CWE-285 (Improper Authorization) vulnerabilities

CVE-2025-65041 — Critical (CVSS 10.0): Improper authorization in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.
CVE-2023-33189 — Critical (CVSS 10.0): Pomerium is an identity and context-aware access proxy. With specially crafted requests, incorrect authorization…
CVE-2022-2595 — Critical (CVSS 10.0): Improper Authorization in GitHub repository kromitgmbh/titra prior to 0.79.1.
CVE-2021-28799 — Critical (CVSS 10.0): An improper authorization vulnerability has been reported to affect QNAP NAS running HBS 3 (Hybrid Backup Sync. ) If…
CVE-2026-34048 — Critical (CVSS 9.9): Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to…
CVE-2026-5412 — Critical (CVSS 9.9): In Juju versions prior to 2.9.57 and 3.6.21, an authorization issue exists in the Controller facade. An authenticated…

Browse all CWE-285 (Improper Authorization) vulnerabilities →