CVE-2019-13647: Firefly-Iii Firefly Iii

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

Firefly III before 4.7.17.3 is vulnerable to stored XSS due to lack of filtration of user-supplied data in image file content. The JavaScript code is executed during attachments/view/$file_id$ attachment viewing. NOTE: It is asserted that an attacker must have the same access rights as the user in order to be able to execute the vulnerability

Affected products

• Firefly-Iii Firefly Iii: before 4.7.17.3 (fixed in 4.7.17.3)

Published 2019-07-18. Last modified 2026-06-17.