CVE-2026-25529

ALTO 8.1CVE-2026-25529 · Published 12/03/2026 · updated 17/06/2026

In breve

CVE-2026-25529 è una vulnerabilità ALTO (CVSS 8.1) che riguarda postal (postalserver).
Probabilità di sfruttamento nei prossimi 30 giorni (EPSS): 0.24%, superiore al 15.7% delle vulnerabilità.
Correzione: aggiornare a 3.3.5 o successiva.

Package	Affected versions	Patched versions
postal postalserver	`< 3.3.5`	`3.3.5`

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.

References

postalserver/postal security advisory · Mitigation

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