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CVE-2026-56780— Modoboa < 2.9.0 - Insecure Direct Object Reference in Account Password Change API

Quick assessment

Affected
modoboa modoboa
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Modoboa是Modoboa团队开源的一个邮件托管和管理平台。 Modoboa 2.9.0之前版本存在授权问题漏洞，该漏洞源于PUT /api/v1/accounts/{pk}/password/端点中存在不安全的直接对象引用，允许域管理员更改任何用户的密码，攻击者可通过域管理员权限绕过对象级访问控制重置超级管理员密码，实现完全账户接管。

CVSS 7.5 · High EPSS 0.46% · P37

Affected Version Matrix 2

VendorProduct Version RangeStatus
modoboa modoboa < 2.9.0 affected
2.9.0 unaffected
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I. Basic Information for CVE-2026-56780

Vulnerability Information
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Vulnerability Title
Modoboa < 2.9.0 - Insecure Direct Object Reference in Account Password Change API
Source: CVE Program / CVE List V5
Vulnerability Description
Modoboa before 2.9.0 contains an insecure direct object reference vulnerability in the PUT /api/v1/accounts/{pk}/password/ endpoint that allows domain administrators to change any user's password. Attackers with domain admin privileges can bypass object-level access controls to reset superadmin passwords and achieve full account takeover.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Modoboa 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Modoboa是Modoboa团队开源的一个邮件托管和管理平台。 Modoboa 2.9.0之前版本存在授权问题漏洞，该漏洞源于PUT /api/v1/accounts/{pk}/password/端点中存在不安全的直接对象引用，允许域管理员更改任何用户的密码，攻击者可通过域管理员权限绕过对象级访问控制重置超级管理员密码，实现完全账户接管。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
modoboa modoboa 0 ~ 2.9.0 -

II. Public POCs for CVE-2026-56780

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 10405 chars
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III. Intelligence Information for CVE-2026-56780

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Patches & Fixes for CVE-2026-56780 (2)

Vendor Advisories for CVE-2026-56780 (1)

IV. Related Vulnerabilities

Same product: modoboa
Same vendor: modoboa
Same weakness: CWE-639

V. Comments for CVE-2026-56780

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