CVE-2026-113599
Modoboa before 2.8.0 IDOR via API v2 armessages Auto-Reply Creation
modoboa modoboa
CVSS
5.3MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.34%Chance of exploitation activity in the next 30 days, higher than 26% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 2.8.0modoboaCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
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.
Text from CVE List
Affected versions 1
- modoboaaffected: all versions before 2.8.0CVE List
References 5
- github.com/modoboa/modoboa/commit/e0a4e3b9ee8ad84dba46e4c0f04cbbe7cf78c38dFixvia CVE List
- github.com/modoboa/modoboa/releases/tag/2.8.0Fixvia CVE List
- vulncheck.com/advisories/modoboa-before-2.8.0-idor-via-api-v2-armessages-auto-reply-creationAdvisoryvia CVE List
- github.com/modoboa/modoboa/issues/3945Referencevia CVE List
- github.com/modoboa/modoboa/blob/2.7.2/modoboa/autoreply/api/v2/serializers.pyReferencevia CVE List