CVE-2026-26930: high-severity vulnerability in SmarterTools SmarterMail
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.2epss 0.3%
SmarterTools SmarterMail before 9526 allows XSS via MAPI requests.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Affected products
SmarterTools · SmarterMailRelated CVEs — SmarterTools SmarterMail
In the same product, most dangerous first.
CVE-2026-23760CRITICALSmarterTools SmarterMail < Build 9511 Authentication Bypass via Password Reset APIEPSS 96.4%KEVCVE-2026-24423CRITICALSmarterTools SmarterMail < Build 9511 Unauthenticated RCE via ConnectToHub APIEPSS 88.2%KEVCVE-2025-52691CRITICALUpload Arbitrary FilesEPSS 85.7%KEVCVE-2026-25067MEDIUMSmarterTools SmarterMail < Build 9518 Unauthenticated background-of-the-day Path CoercionEPSS 0.3%