CVE-2023-23326: Avantfax

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

A Stored Cross-Site Scripting (XSS) vulnerability exists in AvantFAX 3.3.7. An authenticated low privilege user can inject arbitrary Javascript into their e-mail address which is executed when an administrator logs into AvantFAX to view the admin dashboard. This may result in stealing an administrator's session cookie and hijacking their session.

Affected products

• Avantfax Avantfax: version 3.3.7 only

Published 2023-03-10. Last modified 2026-07-09.