CVE-2019-20354

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 8.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-01-06 · updated 2026-06-17
Weakness: CWE-22

Description

The web application component of piSignage before 2.6.4 allows a remote attacker (authenticated as a low-privilege user) to download arbitrary files from the Raspberry Pi via api/settings/log?file=../ path traversal. In other words, this issue is in the player API for log download.

Affected products

Pisignage: before 2.6.4 — fixed in 2.6.4

How to fix

Upgrade to a fixed version: Pisignage 2.6.4. Check the vendor advisory for mitigations.

References

http://packetstormsecurity.com/files/155864/piSignage-2.6.4-Directory-Traversal.html
https://github.com/colloqi/piSignage/blob/master/RELEASE%20NOTES.md
https://github.com/colloqi/piSignage/issues/97
http://packetstormsecurity.com/files/155864/piSignage-2.6.4-Directory-Traversal.html
https://github.com/colloqi/piSignage/blob/master/RELEASE%20NOTES.md
https://github.com/colloqi/piSignage/issues/97

Get alerted when CVE-2019-20354 or the next vulnerability affects your stack