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CVE-2026-113599— Modoboa before 2.8.0 IDOR via API v2 armessages Auto-Reply Creation

Quick assessment

Affected
modoboa modoboa
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Modoboa 2.8.0 之前的版本存在不安全的直接对象引用漏洞。该漏洞允许已认证用户通过提供其他用户的邮箱（mbox）值，为任意邮箱创建自动回复消息。攻击者可向 发起 POST 请求，将攻击者控制的自动回复主题和内容注入到受害者的设置中，或通过引发 错误破坏其自动回复管理功能。

CVSS 5.4 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
modoboa modoboa < 2.8.0 affected
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I. Basic Information for CVE-2026-113599

Vulnerability Information
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Vulnerability Title
Modoboa before 2.8.0 IDOR via API v2 armessages Auto-Reply Creation
Source: CVE Program / CVE List V5
Vulnerability Description
Modoboa before 2.8.0 contains an insecure direct object reference vulnerability that allows authenticated users to create auto-reply messages for arbitrary mailboxes by supplying another user's mbox value. Attackers can POST to /api/v2/armessages/ to inject attacker-controlled auto-reply subject and content into victims' settings or break their auto-reply management via MultipleObjectsReturned errors.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
modoboa modoboa 0 ~ 2.8.0 -

II. Public POCs for CVE-2026-113599

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-113599

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Patches & Fixes for CVE-2026-113599 (1)

Vendor Advisories for CVE-2026-113599 (1)

Vendor Pages for CVE-2026-113599 (2)

Other References for CVE-2026-113599 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-113599

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