CVE-2026-113599
Modoboa before 2.8.0 IDOR via API v2 armessages Auto-Reply Creation
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-639 |
| Vendor | modoboa |
| Product | modoboa |
| Published | Oct 20, 2026 |
| Last Updated | Oct 20, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
Affected Versions
modoboa / modoboa
0 < 2.8.0
References
github.com: https://github.com/modoboa/modoboa/issues/3945 github.com: https://github.com/modoboa/modoboa/commit/e0a4e3b9ee8ad84dba46e4c0f04cbbe7cf78c38d github.com: https://github.com/modoboa/modoboa/releases/tag/2.8.0 github.com: https://github.com/modoboa/modoboa/blob/2.7.2/modoboa/autoreply/api/v2/serializers.py vulncheck.com: https://www.vulncheck.com/advisories/modoboa-before-2.8.0-idor-via-api-v2-armessages-auto-reply-creation
Credits
lighthousekeeper1212 🔍 leediay153 from Viettel Post