CVE-2026-25529
HIGH8.1CVSS v3
—CVSS v2
0.05%
EPSS (exploit probability)
CWE-79CWE
Description
Postal is an open source SMTP server. Postal versions less than 3.3.5 had a HTML injection vulnerability that allowed unescaped data to be included in the admin interface. The primary way for unescaped data to be added is via the API's "send/raw" method. This could allow arbitrary HTML to be injected in to the page which may modify the page in a misleading way or allow for unauthorised javascript to be executed. Fixed in 3.3.5 and higher.
CVSS v3 vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Affected routers (0)
No routers currently mapped to this CVE in our database.