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.

INFO

Published Date :

2026-03-12T16:35:33.384Z

Last Modified :

2026-03-12T17:57:37.553Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-25529 vulnerability.

Vendors Products
Postalserver
  • Postal
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-25529.

URL Resource
https://github.com/postalserver/postal/security/advisories/GHSA-5f4r-5jpr-rfhc cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact