CVE-2020-5205: Powauth Pow

Medium severity, CVSS 5.4. EPSS: 0.8% chance of exploitation in the next 30 days.

In Pow (Hex package) before 1.0.16, the use of Plug.Session in Pow.Plug.Session is susceptible to session fixation attacks if a persistent session store is used for Plug.Session, such as Redis or a database. Cookie store, which is used in most Phoenix apps, doesn't have this vulnerability.

Affected products

• Powauth Pow: before 1.0.16 (fixed in 1.0.16)

Published 2020-01-09. Last modified 2026-06-17.