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Vulnerability record · CVE-2026-90944 · published 14 September 2026

CVE-2026-90944: Missing authentication for critical function vulnerability

Krayin CRM through 2.2.6 exposes the POST /admin/mail/inbound-parse endpoint without authentication, allowing unauthenticated attackers to inject arbitrary emails into the CRM inbox. Attackers can supply crafted RFC 2822 messages with forged sender information and headers to insert emails with any subject and body, including replies to existing conversation threads.

8.8 CVSS 4.0 High EPSS 0.66% · top 50.4% CWE-306 · Missing authentication for critical function Deferred
8.8CVSS 4.0 base score
0.66%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
6References
24 Sep 2026Last modified by NVD

Description

Krayin CRM through 2.2.6 exposes the POST /admin/mail/inbound-parse endpoint without authentication, allowing unauthenticated attackers to inject arbitrary emails into the CRM inbox. Attackers can supply crafted RFC 2822 messages with forged sender information and headers to insert emails with any subject and body, including replies to existing conversation threads.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/krayin/laravel-crm
https://github.com/krayin/laravel-crm/blob/v2.2.6/bootstrap/app.php
https://github.com/krayin/laravel-crm/blob/v2.2.6/packages/Webkul/Admin/src/Routes/Admin/mail-routes.php
https://github.com/krayin/laravel-crm/issues/2560
https://www.vulncheck.com/advisories/krayin-crm-through-2.2.6-unauthenticated-email-injection-via-inbound-parse
https://github.com/krayin/laravel-crm/issues/2560

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Source: NIST National Vulnerability Database (record CVE-2026-90944), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.